Irresistibly Delicious Sugar-Free Apple Crisp with Oats: A Healthier Twist on a Classic
Indulge in the comforting embrace of a classic dessert with a modern, healthier twist! Our **sugar-free apple crisp with oats**, crafted with a 1:1 sugar substitute like Swerve, offers all the delightful flavors and textures of traditional apple crisp without the added sugar. This recipe is meticulously designed for those seeking a **lower-calorie and lower-carb apple crisp**, making it an ideal choice for diabetics and anyone looking to manage their sugar intake without compromising on taste. Your family will adore this lighter version, just like ours does!
This comprehensive guide will walk you through creating an amazing sugar-free apple crisp. We’ll delve into the best ingredient choices, detailed preparation tips, and how to enjoy this healthier dessert. Additionally, we’ll address common questions and explore options for dietary adjustments, ensuring you can bake a treat that perfectly suits your lifestyle and health goals. Get ready to transform your dessert experience!

Simply Delicious!
– A family favorite, enjoyed by all.
Important Dietary Considerations: Is This Apple Crisp Keto-Friendly?
A special note from our Dietitian: It’s crucial to clarify the nutritional profile of this **sugar-free apple crisp**. While it contains no added sugars, making it a significantly healthier alternative to traditional recipes, it is **not suitable for very low-carb or ketogenic diets**. This distinction is vital for individuals managing specific health conditions like diabetes, especially those following strict carbohydrate guidelines.
The primary reason this recipe isn’t keto-friendly stems from its star ingredient: apples. Despite being a wholesome fruit, apples contain natural fruit sugars (fructose) and a considerable amount of carbohydrates. For ketogenic diets, which typically restrict daily carbohydrate intake to 20-50 grams, the carbohydrate content of apples is generally too high to be a regular inclusion. Furthermore, the crisp topping is made with conventional ingredients like rolled oats and all-purpose flour, both of which are high in carbohydrates.
Therefore, while this recipe is an excellent option for those aiming to reduce *added* sugars and lower their *overall* carb intake compared to standard desserts, it won’t fit into the strict macros of a ketogenic lifestyle. If you are following a carbohydrate exchange diet for diabetes, this low-carb apple crisp might be incorporated, but it’s always best to consult with your healthcare provider or a registered dietitian.
For those specifically seeking a **keto apple crisp**, there are innovative recipes that use low-carb vegetable substitutes for apples. For instance, some recipes utilize peeled and seeded zucchini to mimic the texture of cooked apples. Similarly, traditional flours can be replaced with low-carb alternatives such as almond flour or coconut flour for the crumble topping. If a truly ketogenic version is what you’re after, “That Low Carb Life” offers a fantastic keto apple crisp recipe that effectively uses zucchini. This is a great resource if you need to adhere to very strict carbohydrate limits.
However, if your preference is for a genuinely delicious apple crisp featuring real apples, but without the guilt of added sugars, then you’ve come to the right place! Let’s get started on whipping up this incredibly tasty and satisfying, healthier dessert!
🍎 Essential Ingredients for Your Sugar-Free Apple Crisp
To create the absolute best sugar-free apple crisp you’ve ever tasted, gather these quality ingredients:
- 5 cups **peeled, cored, and uniformly sliced apples** (approximately 5-6 medium apples, choose firm baking varieties)
- 1/3 cup Swerve granular sweetener (a zero-calorie, erythritol-based sugar substitute that measures 1:1 like sugar)
- 1 teaspoon **ground cinnamon** (for that classic warm spice)
- ¼ teaspoon **ground nutmeg** (complements the cinnamon beautifully)
- **Cooking oil spray** (a light mist is perfect for preparing the baking dish)
- For the Crisp Topping:
- ½ cup **all-purpose flour** (standard flour, or a gluten-free blend if adapting)
- ½ cup **dry rolled oatmeal** (old-fashioned oats are recommended for superior texture in the crumble)
- ½ cup **packed** Swerve brown sweetener (provides a rich, caramel-like flavor without the sugar)
- 6 tablespoons **cold unsalted butter**, cut into small chunks (essential for a crumbly topping; plant-based butter works for vegan versions)
- Optional Servings: **Sugar-free vanilla ice cream** and/or **sugar-free caramel syrup** for an extra layer of deliciousness.

A detailed, printable recipe card with full measurements and comprehensive instructions is conveniently located at the end of this post!
Understanding Swerve Sweetener: Benefits and Cost
Swerve, an erythritol-based sweetener blend, stands out as an excellent sugar substitute for various reasons. Its primary advantage in baking is its ability to measure cup-for-cup like regular sugar, making recipe conversions effortless. Nutritionally, Swerve offers zero net carbohydrates and zero calories, positioning it as a powerful ingredient for creating **no-added-sugar recipes** that support weight management and better blood sugar control. While the cost of Swerve is generally higher than that of traditional white or brown sugar, the health benefits it provides often outweigh the expense for many individuals.
An additional practical benefit of Swerve brown sweetener, specifically, is its remarkable texture. Unlike conventional brown sugar, which has a tendency to clump up and harden over time once exposed to air, Swerve brown maintains a soft, moist consistency. This ensures easy measuring and a consistently perfect crumble for your topping, enhancing the overall experience of baking and enjoying your apple crisp.
Dietary Adaptations: Vegan and Gluten-Free Options
This **sugar-free apple crisp recipe** is wonderfully versatile and can be easily adapted to accommodate various dietary preferences and needs, ensuring everyone can enjoy this delightful dessert:
- For a Vegan Apple Crisp: The primary non-vegan ingredient is butter. To make this recipe completely plant-based, simply substitute the dairy butter with your preferred brand of plant-based stick butter or margarine. Ensure that your chosen vegan butter is suitable for baking, as this will help achieve the best possible texture and flakiness in the crisp topping.
- For a Gluten-Free Apple Crisp: To make this dessert gluten-free, you will need to make two key substitutions. First, ensure you use **certified gluten-free rolled oats** to avoid any cross-contamination. Second, replace the all-purpose flour in the crisp topping with a high-quality 1:1 gluten-free baking flour blend. Brands like Bob’s Red Mill GF 1:1 baking flour are excellent choices, as they are specifically formulated to mimic the properties of wheat flour in baked goods. These simple swaps will allow you to enjoy a delicious gluten-free dessert without compromising on flavor or the satisfying crisp texture.
Essential Equipment for Effortless Preparation
You won’t need a pantry full of specialized gadgets to make this apple crisp. The core equipment required is quite basic and likely already found in most kitchens:
- An 8-inch by 8-inch (20x20cm) glass baking dish: This size is perfect for achieving the ideal apple-to-crisp ratio.
- A sharp kitchen knife: Essential for safely and efficiently slicing your apples.
- An apple peeler: While optional, a good peeler significantly speeds up the apple preparation process.
- A medium mixing bowl: For combining the crisp topping ingredients.
- A large mixing bowl: For tossing the apples with sweetener and spices.
🍏 Choosing the Best Apples for Your Crisp
The type of apple you select plays a crucial role in the success of your apple crisp, influencing both its texture and flavor profile. For baking, you generally want apples that are firm enough to hold their shape without turning to mush, and those that offer a pleasant balance of tartness and sweetness to complement the rich crumble topping.
My top recommendations for baking pies and crisps are **Cortland apples** and **Honeycrisp apples**. Cortlands are prized for their firm, white flesh that resists browning and offers a slightly tart flavor, making them ideal for retaining structure in baked dishes. Honeycrisps, on the other hand, deliver an exceptional crunch and a beautifully balanced sweet-tart taste that shines through after baking. Both varieties are also incredibly delicious for fresh snacking!
Beyond these favorites, several other apple varieties are also excellent choices for apple crisps:
- Jonamac: Known for its crisp texture and appealing sweet-tart flavor that softens wonderfully during baking.
- Ginger Gold: An early-season apple with a delicate sweetness and a hint of tartness, maintaining good structure when cooked.
- Golden Delicious: These apples become tender and sweet, adding a delightful depth of flavor to your crisp. (A crucial note: **DO NOT** confuse these with Red Delicious apples, which tend to be mealy and lose their flavor when cooked, making them unsuitable for baking.)
- Ida Red: A firm and tart apple that holds its shape well and provides a bright, tangy counterpoint to the sweetness.
- Mutsu (Crispin): Large, juicy, and very firm apples with a rich, sweet flavor, perfect for hearty baked goods.
- Granny Smith: A classic baking apple, celebrated for its strong tartness and firm flesh, which ensures it stays intact and provides a tangy kick against the sweet topping.
To further assist you in choosing the perfect apple for any culinary application, I’ve put together a comprehensive chart in my Slow Cooker Applesauce Recipe article. This chart categorizes apple varieties based on their best uses for eating fresh, making pies, sauces, and general baking. Referencing this guide will help you select the ideal apple to make your sugar-free apple dessert truly exceptional every time.
➕ Step-by-Step Guide: How to Make Sugar-Free Apple Crisp with Oats
Creating this wholesome and delicious **sugar-free apple crisp** is a straightforward process. Follow these easy steps to bake a dessert that’s sure to impress!
Begin by preheating your oven to 350 degrees Fahrenheit (177°C). While the oven heats, lightly mist an 8-inch by 8-inch square glass baking dish with your preferred cooking oil spray. Ensure the entire interior surface is coated to prevent the apples from sticking during baking.
Prepare your apples by peeling, coring, and then slicing them. Aim for slices that are consistently ¼ to ½-inch thick (0.6-1.3cm) to ensure even cooking and a pleasing texture in the final crisp. For smaller, bite-sized pieces, you can cut these slices in half widthwise. In a large mixing bowl, combine the prepared apple slices with the granular Swerve, ground cinnamon, and ground nutmeg. Toss gently but thoroughly until every apple slice is beautifully coated with the aromatic spice and sweetener mixture.
Carefully pour the seasoned apple mixture into your prepared baking dish. Using a spatula or spoon, spread the apples out into an even layer across the bottom of the dish. This ensures uniform baking and allows the crisp topping to cover all the apples. Set the dish aside while you proceed to prepare the delightful crisp topping.

Next, it’s time to create the perfect crunchy topping. In a medium bowl, combine the all-purpose flour, dry rolled oats, and packed Swerve brown sweetener. A helpful tip for remembering this step: you need ½ cup of each dry ingredient! Use a spoon to stir the dry ingredients together thoroughly. Then, add the cold butter chunks and use clean fingertips to work the butter into the dry mixture. Continue rubbing the butter into the flour and oat mixture until it forms a coarse, crumbly texture, with no large pieces of butter remaining visible.

Your apple crumble mixture is perfectly ready when it has taken on a clumpy, coarse texture, and all the butter has been fully incorporated, leaving no visible large chunks. Once achieved, evenly sprinkle this delicious crumble over the top of the apples in the baking dish. Ensure a thorough, even layer across the entire surface of the apples to guarantee a wonderfully crunchy topping in every serving.

Place your prepared apple crisp in the middle rack of your preheated oven and bake for approximately 35-40 minutes. It is important **not to cover your apple crisp during baking**. Covering the dessert will trap moisture, which can prevent the topping from becoming perfectly golden and crispy, and may result in a more watery apple filling. Baking uncovered ensures a beautiful, crunchy topping.
After baking, resist the urge to immediately cut into your warm crisp! It’s crucial to allow the dessert to cool sufficiently before serving. As the crisp cools, the apple filling will naturally thicken, resulting in a much firmer, less watery, and more enjoyable texture. Aim for at least 15-20 minutes of cooling time for optimal results.

For an extra touch of indulgence, consider serving your **sugar-free apple crisp** warm with a generous scoop of sugar-free vanilla ice cream and a drizzle of sugar-free caramel syrup. This combination creates a delightful symphony of textures and temperatures – the warm, tender apples and crunchy topping contrasting beautifully with the cold, creamy ice cream. Remember to specifically choose sugar-free or no-added-sugar products for your toppings if you wish to maintain the entirely sugar-free nature of this delicious dessert. It’s an absolutely satisfying and guilt-free treat that’s perfect for any occasion!

Frequently Asked Questions & Expert Tips for Apple Crisp
Should apple crisp be watery?
It’s quite common for apple crisp to appear a little watery when it first comes out of the oven. This phenomenon occurs because apples release their natural juices as they cook. However, the good news is that the apple filling will naturally thicken as the crisp cools down. For the optimal consistency, many find that apple crisp tastes best when it has cooled completely and then been gently reheated, as this method often results in a less watery filling. If you frequently encounter excessively watery apple pies and crisps, it might be beneficial to experiment with different apple varieties. As suggested in the ingredients section above, selecting apples known for holding their structure well during baking can significantly reduce the wateriness.
Should apple crisp be served warm or cold?
Whether to serve apple crisp chilled or warm is truly a matter of personal preference, and both ways offer a delightful experience! Many people, myself included, particularly enjoy the captivating juxtaposition of a warm fruit crisp paired with cold vanilla or berry ice cream. The combination of the tender, spiced apples and crunchy topping with a scoop of soft, slightly melting ice cream creates a truly blissful dessert experience. Feel free to experiment with both temperatures to discover your favorite way to enjoy this comforting treat!
Should apple crisp be refrigerated after baking?
Yes, absolutely! For both food safety and to maintain its freshness, it is highly recommended to store this **sugar-free apple crisp** in the refrigerator. Unlike some fruit pies or crisps that contain a high amount of sugar (which acts as a natural preservative), this recipe contains no added sugar, making it more susceptible to bacterial growth at room temperature. Once your crisp has cooled to room temperature, cover it tightly with plastic wrap or aluminum foil and place it in the refrigerator. It will stay fresh for up to 3-4 days. If you anticipate not finishing the entire crisp within this timeframe, it freezes exceptionally well! Simply transfer cooled portions into an airtight, freezer-safe container, and it can be stored for several months in the freezer. Thaw it in the refrigerator overnight and reheat gently for a convenient and delicious treat.
Watch How to Make It!

Sugar-Free Apple Crisp Recipe with Oats
Summer Yule
Print Recipe
Pin Recipe
40 minutes
40 minutes
Dessert, Snack
American
6
228
kcal
Ingredients
-
5
cups
peeled, cored, sliced apples -
⅓
cup
Swerve, granular -
1
teaspoon
cinnamon -
¼
teaspoon
nutmeg - cooking oil spray of choice
-
½
cup
all-purpose flour -
½
cup
rolled oats, dry -
½
cup
Swerve, brown
(packed) -
6
tablespoons
butter, cut into small chunks -
sugar free ice cream and/or sugar-free caramel syrup
(optional)
Love this recipe?
Please leave a comment below 😊
Instructions
- Preheat the oven to 350°F (175°C). Mist an 8×8-inch (20×20 cm) glass baking dish with cooking spray.
- Peel, core, and slice your apples. Cut the slices ¼-½ inch (0.64-1.27 cm) thick, and then slice them in half widthwise. Mix the apples with granular Swerve, cinnamon, and nutmeg.
- Pour your apple mixture into your prepared baking dish and spread the apples out into an even layer. Set the dish aside.
- In a medium bowl, combine the flour, oats, and brown Swerve. Use your fingers to thoroughly incorporate the cold butter chunks until the mixture forms coarse crumbs.
- Your apple crumble mixture is ready when it has a clumpy, coarse texture with no visible butter chunks. Sprinkle the crumble evenly over the top of the apples in the baking dish.
- Bake the crisp in the middle of the heated 350°F (175°C) oven for 35-40 minutes. Let the crisp cool for at least 15-20 minutes before serving (it will be less watery and firmer if you let it cool a bit).
- If desired, serve the crisp with some creamy sugar-free vanilla ice cream and a drizzle of sugar-free caramel syrup. Enjoy this delightful, guilt-free dessert!
Equipment
- Peeler
- Knife
- 8×8 Glass Baking Dish
Expert Tips from Dietitian Summer Yule
This is a Level 3 Recipe: Ideal for Weight Maintenance and Active Lifestyles.
When considering baked goods, even those crafted with healthier ingredients like this sugar-free apple crisp, it’s essential to practice mindful consumption, especially if your primary objective is weight loss. While all desserts should be enjoyed in moderation, fruit crisps typically represent a considerably lighter dessert choice when compared to their more indulgent pie counterparts.
The crust or crumble element usually contributes the most calories and fat to most pies and crisps. This **sugar-free apple crisp** naturally boasts fewer calories and less fat than a traditional apple pie because it cleverly omits the heavy bottom crust, focusing instead on a generous, flavorful fruit filling topped with a lighter oat-based crumble. Moreover, desserts predominantly made with whole fruits, such as apples, tend to be lower in overall calories and richer in beneficial nutrients like fiber, compared to desserts that are heavily reliant on nuts or excessive amounts of flour. Opting for a serving of this delicious **sugar-free apple crisp** instead of a slice of pecan pie or a rich chocolate cake can easily help you save hundreds of calories per portion, making it a smart choice for mindful indulgence.
This particular **sugar-free apple crisp recipe** is formulated to provide approximately **228 calories and 24.9g net carbohydrates** per generous serving. To put this into perspective, my original apple crisp recipe, which utilized real sugar, came in at around 336 calories and a substantial 53.5g net carbs per serving. This represents a remarkably significant difference!
By simply implementing the substitution of Swerve for traditional sugar, you are effectively reducing the calorie count by approximately 108 calories and an impressive 29g net carbohydrates per serving. This seemingly minor ingredient swap yields a profound nutritional impact, making this dessert a much more suitable option for individuals adhering to a lower-carb diet for weight management goals or for those aiming to achieve better blood sugar control in the context of diabetes. The result is an impressive net carbohydrate decrease of over 50% – a clear demonstration of how intelligent and informed ingredient choices can truly transform your cherished classic treats into healthier, guilt-free delights!
Important Note: The nutrition information provided within this recipe section pertains specifically to one serving of the **sugar-free apple crisp itself**. It does not account for any optional toppings that may be added, such as ice cream or caramel syrup. Furthermore, all carbohydrate values listed in this recipe refer to **net carbohydrates** (total carbohydrates minus fiber and sugar alcohols), rather than total carbohydrates, which is an important distinction for many dietary approaches.
Nutrition Information Disclaimer
Please remember that all recipes shared on this website are provided for informational purposes only. Their suitability for your individual dietary needs may vary based on your medical conditions and personal preferences. We strongly advise consulting with a registered dietitian or your physician to determine the most appropriate dietary pattern that aligns with your specific health goals and requirements.
The nutrition information presented here is an estimated courtesy. It should be understood that actual nutritional values can differ based on the specific brands of ingredients you use, and the precision of your measurements. It’s also worth noting that calorie information on commercial food labels can sometimes be inaccurate, so please avoid excessive preoccupation with exact numerical figures.
Instructions such as “to taste” imply adjustment to your personal preferences. However, always prioritize food safety rules, particularly when it comes to ensuring food is thoroughly cooked. Please refrain from consuming undercooked food under any circumstances.
Nutrition Information
Calories:
228
kcal
Carbohydrates:
24.9
g
Protein:
2.1
g
Fat:
11.7
g
Saturated Fat:
7.2
g
Potassium:
148
mg
Vitamin A:
8.1
% DV
Vitamin C:
8
% DV
Calcium:
1.5
% DV
Iron:
3.1
% DV
sugar free apple crisp, diabetic apple crisp, low carb apple crisp, apple crisp with oats, Swerve apple crisp, healthy apple crisp recipe
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🍏 Explore More Delicious Apple Recipes
If you’ve recently enjoyed an apple-picking adventure this autumn or simply find yourself with a bountiful supply of apples, don’t let them go to waste! Apples are incredibly versatile and can be transformed into a wide array of delightful sweet and savory dishes. Here are some fantastic recipes that prominently feature apples, perfect for expanding your culinary repertoire and making the most of your fresh harvest:
- Dehydrated Cinnamon Apples: A wonderfully crisp, naturally sweet, and incredibly portable snack perfect for lunchboxes or on-the-go energy.
- Homemade Unsweetened Applesauce Recipe: Simple, wholesome, and completely free from added sugars, this applesauce is a healthier staple.
- Overnight Oats with Applesauce: A convenient and healthy breakfast option that requires minimal morning prep, making busy weekdays much easier.
- Air Fryer Granola (No Oil): Achieve wonderfully crunchy, satisfying granola with a delicious apple pie twist, all without added oils.
- Apple Strawberry Smoothie: A refreshing and nutritious beverage packed with vibrant fruit flavor, perfect for a quick energy boost.
- Canned Whole Chicken Salad with Apples: Elevate your chicken salad with a delightful crunch and a touch of natural sweetness from fresh apples.
Apples are truly a fantastic fruit to keep well-stocked in your kitchen throughout the year. Their natural acidity and firm flesh allow them to last for many weeks when stored properly in the refrigerator, ensuring you always have a healthy ingredient on hand. Moreover, many apple-based dishes are excellent candidates for meal preparation and freezing. Consider making a large batch of homemade unsweetened applesauce or this very **sugar-free apple crisp** and freezing individual portions. This offers a convenient solution for quick, healthy desserts or snacks that you can enjoy long after the main harvest season has passed, minimizing food waste and maximizing deliciousness!
👩🍳 Discover More Delightful Sugar-Free Desserts
If your culinary journey is focused on exploring more delicious snacks and desserts that contain no added sugar, you’re in the right place! Embracing healthier alternatives doesn’t mean you have to sacrifice flavor or satisfaction. Here is an expanded selection of fantastic recipes designed to satisfy your sweet cravings guilt-free, proving that healthy eating can be incredibly enjoyable and diverse:
- Sugar-Free Strawberry Shortcake: Indulge in this beloved classic summer treat, reimagined without any added sugars for a lighter, refreshing experience.
- Dalgona Coffee without Sugar: Experience the trendy, creamy, whipped coffee indulgence, made healthier and equally satisfying without sugar.
- Keto Blueberry Smoothie Recipe: A refreshing, low-carb smoothie that’s perfect for a quick breakfast, a post-workout refuel, or a satisfying snack.
- Roasted Black Beans (Cheesy and Crispy Snack!): A unique, savory, and satisfyingly crispy snack that is naturally sugar-free and packed with flavor.
- Nut-Free Trail Mix: A versatile, energy-boosting snack that can be customized with your favorite seeds, dried fruits, and other goodies, all while being allergy-friendly.
- Peanut Butter Avocado Smoothie with Chocolate: A rich, creamy, and decadent high-calorie smoothie option that’s also incredibly healthy and satisfying.
These diverse recipes showcase that adopting a lifestyle with reduced or no added sugar can open up a world of exciting and flavorful possibilities, proving that healthy eating is anything but restrictive.
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