Double Berry-Hazelnut Crumble Recipe

Name: Double Berry-Hazelnut Crumble
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 1 stick unsalted butter, softened, plus more for the baking dish; 4 cups blackberries; 4 cups blueberries; 1/2 cup maple syrup; 1/3 cup instant tapioca; 1 1/4 cups all-purpose flour; 1/2 cup granulated sugar; 1/3 cup packed light brown sugar; 1/2 teaspoon freshly grated nutmeg; Pinch of salt; 2/3 cup blanched hazelnuts; 1 teaspoon vanilla extract

Servings: persons

1 stick unsalted butter, softened, plus more for the baking dish
4 cups blackberries
4 cups blueberries
1/2 cup maple syrup
1/3 cup instant tapioca
1 1/4 cups all-purpose flour
1/2 cup granulated sugar
1/3 cup packed light brown sugar
1/2 teaspoon freshly grated nutmeg
Pinch of salt
2/3 cup blanched hazelnuts
1 teaspoon vanilla extract

1
Preheat the oven to 375 degrees F. Butter a 9-inch-square baking dish.
2
Toss the blackberries and blueberries in a large bowl with the maple syrup and tapioca.
3
Transfer to the prepared baking dish.
4
Combine the flour, granulated sugar, brown sugar, nutmeg and salt in a food processor and pulse to combine.
5
Add the hazelnuts, butter and vanilla; pulse until the nuts are roughly chopped.
6
Sprinkle the topping over the berries, pinching it with your fingers to make small clumps.
7
Bake until the filling is bubbling and the topping is golden brown, about 1 hour.
8
Let cool slightly before serving.
9
Photograph by Kana Okada

671

kcal

Calories

Fat

113

Carbs

Protein

Fat Carbs Protein

* Per serving · 4 servings · Values may vary.

Tips for the best results

Read through all the steps once before you start and measure out your ingredients first — it makes everything go more smoothly.
Preheat the oven fully and bake on the middle rack for the most even results.
Check for doneness a few minutes early — a toothpick in the center should come out with just a few moist crumbs.
Let it cool before slicing so it sets properly and holds its shape.
Store leftovers in an airtight container in the fridge and enjoy within a few days.

Variations & substitutions

Use a neutral oil or a plant-based spread in place of butter for a dairy-free version.
Brown sugar instead of white sugar adds a deeper, more caramel-like flavor.
Leave out the nuts to make it nut-free, or swap in seeds for a similar crunch.
A good 1:1 gluten-free flour blend works well if you need a gluten-free version.

No specific allergen information. Please check the ingredient list for possible allergens.

My Personal Notes

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How did you like this recipe?

This recipe makes 4 servings. You can adjust the portion size directly on this page.

You need 12 ingredients. The key ingredients include: 1 stick unsalted butter, softened, plus more for the baking dish, 4 cups blackberries, 4 cups blueberries, 1/2 cup maple syrup, and more.

Yes, Double Berry-Hazelnut Crumble falls under the Baking & Desserts category and is a great choice for this type of meal.

Store in an airtight container at room temperature for up to 3–5 days. For longer storage, freeze for up to 3 months — no need to refrigerate or reheat.

That's it — enjoy your meal!

Double Berry-Hazelnut Crumble

Tips for the best results

Variations & substitutions

My Personal Notes

How did you like this recipe?

Frequently Asked Questions