This Ultimate Healthy Blueberry Crumble is a perfect guilt-free dessert that’s packed with juicy blueberries and topped with a crisp, cinnamon-spiced oat crumble. Sweetened naturally with maple syrup, this wholesome treat is light yet satisfying—ideal for a cozy night in or a refreshing summer dessert.

Why You’ll Love This Recipe

Naturally sweetened – Uses maple syrup instead of refined sugar.
Simple and wholesome – Made with whole wheat flour and oats for added nutrition.
Easy to make – Only 10 minutes of prep time.
Versatile – Enjoy it on its own or pair it with yogurt, ice cream, or whipped cream.
Great for any occasion – A healthier dessert option for gatherings or weeknight treats.

Ingredients

(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)

For the Blueberry Filling:

4 cups (560g) fresh blueberries
2 teaspoons cornstarch
2 tablespoons (30ml) pure maple syrup
1 ½ teaspoons vanilla extract

For the Crumble Topping:

½ cup (50g) old-fashioned rolled oats
¼ cup (30g) whole wheat flour (or all-purpose flour)
1 ½ teaspoons ground cinnamon
2 tablespoons (30ml) pure maple syrup
2 tablespoons (28g) unsalted butter, melted

Directions

Prepare the Filling

Preheat the oven to 350°F (175°C) and lightly grease an 8-inch square baking dish.
In a mixing bowl, toss the blueberries with cornstarch, maple syrup, and vanilla extract.
Spread the mixture evenly into the prepared baking dish.

Make the Crumble Topping

In another bowl, mix the oats, flour, and cinnamon.
Stir in the maple syrup and melted butter until the mixture forms small crumbles.

Assemble and Bake

Sprinkle the crumble topping evenly over the blueberry mixture.
Bake for 35-40 minutes or until the blueberries are bubbling and the topping is golden brown.

Cool and Serve

Let the crumble cool for 10 minutes before serving.
Enjoy warm, plain, or with a scoop of vanilla yogurt or ice cream!

Pro Tip: You can substitute fresh blueberries with frozen ones—just do not thaw before baking.

Servings and Timing

Servings: 6
Prep Time: 10 minutes
Baking Time: 35 minutes
Total Time: 45 minutes
Calories per serving: 150 kcal

Variations

Use different fruits – Try raspberries, strawberries, or a mix of berries.
Make it gluten-free – Use almond flour or a gluten-free flour blend.
Add nuts for crunch – Stir in chopped almonds or pecans to the topping.
Make it dairy-free – Swap butter for coconut oil.
Boost the fiber – Add ground flaxseeds or chia seeds to the topping.

Storage/Reheating

Storage: Keep in an airtight container in the refrigerator for up to 5 days.
Freezing: Store in a freezer-safe container for up to 2 months. Thaw overnight in the fridge before reheating.
Reheating: Warm in a 300°F (150°C) oven for 10 minutes or microwave individual portions for 30 seconds.

FAQs

1. Can I use frozen blueberries?

Yes! Just use them straight from the freezer—no need to thaw.

2. How do I make this crumble crispier?

Try adding a little more butter or baking for an extra 5 minutes.

3. Can I use honey instead of maple syrup?

Yes, honey works as a substitute, but it may slightly alter the flavor.

4. What if I don’t have cornstarch?

You can use arrowroot powder or flour as a thickener.

5. Can I double the recipe?

Absolutely! Use a 9×13-inch baking dish and double all ingredients.

6. Can I use quick oats instead of rolled oats?

Rolled oats give the best texture, but quick oats can be used in a pinch.

7. What’s the best way to serve this crumble?

It’s delicious on its own but pairs wonderfully with Greek yogurt, whipped cream, or ice cream.

8. Can I make this ahead of time?

Yes! Assemble the crumble, cover, and refrigerate until ready to bake.

9. How can I make this extra sweet?

Add a tablespoon of coconut sugar to the crumble topping.

10. What other spices can I add?

Nutmeg or cardamom adds extra warmth to the flavor.

Conclusion

This Ultimate Healthy Blueberry Crumble is a perfect balance of sweet, juicy blueberries and a crunchy oat topping. Naturally sweetened and full of wholesome ingredients, it’s a guilt-free dessert that doesn’t compromise on flavor. Whether you serve it warm with a scoop of ice cream or enjoy it as a light snack, this recipe is bound to become a favorite. Try it today!