Healthy Raspberry Crumble Bars (Low-Carb & Sugar-Free)

Posted on April 8, 2026

By: Melissa Andrew

Healthy Raspberry Crumble Bars (Low-Carb & Sugar-Free)

Difficulty

Prep time

Cooking time

Total time

Servings

These keto raspberry crumble bars are the perfect balance of buttery, crumbly texture and sweet-tangy berry goodness. Designed for low-carb lifestyles, this recipe swaps traditional flour and sugar for wholesome, keto-friendly alternatives without compromising flavor. The base is a soft, golden shortbread crust, layered with a vibrant raspberry filling, and topped with a crisp crumble that melts in your mouth.

What makes these bars truly special is their simplicity and versatility. With ingredients like almond flour, natural sweeteners, and fresh raspberries, you get a dessert that feels indulgent yet fits into a clean eating routine. Whether you’re meal-prepping healthy snacks or making a guilt-free dessert for guests, these bars deliver every time.

Ingredients

IngredientQuantity
Almond flour1 ⅓ cups
Coconut flour2 teaspoons
Unsalted butter (melted)2 tablespoons
Water2 teaspoons
Granulated keto sweetener2 tablespoons
Vanilla extract1 teaspoon
Fresh or frozen raspberries3 cups
Lemon juice2 tablespoons
Powdered keto sweetener¼ cup
Water (for filling)¼ cup
Lemon zest (optional)½ teaspoon
Ingredients

Instructions

Step 1

Prepare the crust and crumble mixture by combining almond flour, coconut flour, melted butter, sweetener, vanilla, and water in a bowl. Mix until a crumbly dough forms. Press half of the mixture evenly into a lined baking pan to create the base, ensuring it is compact and smooth.

Step 2

Bake the crust in a preheated oven at 350°F (175°C) for about 10–12 minutes until the edges turn lightly golden. Remove from the oven and allow it to cool slightly while you prepare the filling.

Step 3

In a saucepan over medium heat, combine raspberries, lemon juice, sweetener, and water. Cook until the berries break down and the mixture thickens into a jam-like consistency. Lightly mash some berries while keeping a few chunks for texture.

Step 4

Spread the raspberry filling evenly over the baked crust. Sprinkle the remaining crumble mixture on top. Return to the oven and bake for 15–20 minutes until the top is golden and slightly crisp. Cool completely before slicing into bars.

Recipe Information

  • Prep Time: 15 minutes
  • Cook Time: 30 minutes
  • Total Time: 45 minutes
  • Servings: 9 bars
  • Cuisine: American
  • Course: Dessert

Nutrition Information (Approximate)

  • Calories: 180 kcal
  • Protein: 4 g
  • Carbohydrates: 7 g
  • Fat: 15 g
  • Fiber: 3 g
  • Sugar: 2 g
  • Sodium: 80 mg
Healthy Raspberry Crumble Bars (Low-Carb & Sugar-Free)
Melissa Andrew

Healthy Raspberry Crumble Bars (Low-Carb & Sugar-Free)

Healthy Raspberry Crumble Bars (Low-Carb & Sugar-Free) Keto Friendly
Prep Time 15 minutes
Cook Time 30 minutes
Total Time 45 minutes
Servings: 9 Bars
Course: Dessert
Cuisine: American
Calories: 180

Ingredients
  

  • | Almond flour | 1 ⅓ cups |
  • | Coconut flour | 2 teaspoons |
  • | Unsalted butter melted | 2 tablespoons |
  • | Water | 2 teaspoons |
  • | Granulated keto sweetener | 2 tablespoons |
  • | Vanilla extract | 1 teaspoon |
  • | Fresh or frozen raspberries | 3 cups |
  • | Lemon juice | 2 tablespoons |
  • | Powdered keto sweetener | ¼ cup |
  • | Water for filling | ¼ cup |
  • | Lemon zest optional | ½ teaspoon |

Method
 

  1. Prepare the crust and crumble mixture by combining almond flour, coconut flour, melted butter, sweetener, vanilla, and water in a bowl. Mix until a crumbly dough forms. Press half of the mixture evenly into a lined baking pan to create the base, ensuring it is compact and smooth.
  2. Bake the crust in a preheated oven at 350°F (175°C) for about 10–12 minutes until the edges turn lightly golden. Remove from the oven and allow it to cool slightly while you prepare the filling.
  3. In a saucepan over medium heat, combine raspberries, lemon juice, sweetener, and water. Cook until the berries break down and the mixture thickens into a jam-like consistency. Lightly mash some berries while keeping a few chunks for texture.
  4. Spread the raspberry filling evenly over the baked crust. Sprinkle the remaining crumble mixture on top. Return to the oven and bake for 15–20 minutes until the top is golden and slightly crisp. Cool completely before slicing into bars.

Notes

  • Protein: 4 g
  • Carbohydrates: 7 g
  • Fat: 15 g
  • Fiber: 3 g
  • Sugar: 2 g
  • Sodium: 80 mg

Flavor Profile Breakdown

  • Sweet with mild tartness from raspberries
  • Buttery and nutty base
  • Light citrus hint from lemon
  • Crumbly, slightly crisp topping

Tips for Best Results

  • Use fresh raspberries for brighter flavor
  • Let bars cool fully before cutting for clean slices
  • Line pan with parchment for easy removal
  • Adjust sweetness based on preference

Variations & Substitutions

  • Swap raspberries with strawberries or blueberries
  • Add cream cheese layer for richness
  • Use coconut oil instead of butter
  • Add chia seeds for thicker filling

Mistakes to Avoid

  • Skipping cooling time (bars will fall apart)
  • Overbaking the crumble topping
  • Using too much liquid in filling
  • Not pressing crust firmly enough

Serving Suggestions

  • Serve chilled for firmer texture
  • Pair with whipped cream or keto ice cream
  • Enjoy as a post-workout snack
  • Add fresh berries on top

Storage Tips

  • Store in airtight container in fridge up to 5 days
  • Freeze individually for up to 1 month
  • Reheat slightly for a warm dessert feel

Why You’ll Love This Recipe

  • Low-carb and keto-friendly
  • Simple ingredients and easy steps
  • Perfect balance of sweet and tart
  • Great for meal prep or desserts
  • Gluten-free and sugar-free

How to Serve

  • Cut into even squares for clean presentation
  • Dust lightly with powdered sweetener
  • Serve with hot coffee or tea
  • Plate with fresh mint for garnish

FAQs

Can I use frozen raspberries instead of fresh?
Yes, frozen raspberries work perfectly. Just cook them a bit longer to reduce excess moisture.

What sweetener works best for this recipe?
Monk fruit or erythritol blends work best as they mimic sugar without affecting carbs.

Can I make these bars dairy-free?
Yes, simply replace butter with coconut oil or vegan butter.

Why are my bars falling apart?
They likely need more cooling time. Let them set completely before slicing.

Can I add a cheesecake layer?
Yes, a cream cheese layer can be added between the crust and raspberry filling for extra richness.

How do I make the filling thicker?
You can simmer longer or add a small amount of chia seeds or xanthan gum.

Are these bars freezer-friendly?
Yes, wrap individually and freeze for up to a month for best quality.

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