The perfect blueberry crumble recipe


There is something comforting about a warm, homemade blueberry crumble. The combination of sweet, juicy blueberries with a crispy buttery topping is simply irresistible. Whether you're craving a delightful dessert or a tasty breakfast treat, this blueberry crumble recipe will satisfy your cravings. So, let's dive in and learn how to make this delicious dessert!


  • 40 grams (1 cup) all-purpose flour, leveled

    144 grams (1 and a half cups) rolled oats

    140 grams (⅔ cup) granulated sugar

    150 grams (⅔ cup) unsalted butter, melted and cooled

    300 grams (2 cups) frozen blueberries

    50 grams (¼ cup) granulated sugar

    2 teaspoons cornstarch

    1 tablespoon lemon juice

    1 and a half teaspoons lemon zest (zest of a large lemon)


Preheat your oven to 350°F (175°C). Grease and line an 8-inch (20 cm) square baking dish with parchment paper, leaving a 2-inch (5 cm) overhang.

In a bowl, mix together the flour, rolled oats, and granulated sugar. Incorporate the melted butter until the mixture becomes crumbly and well combined.

Set aside about 1/3 of the crumble mixture (approximately 190g or slightly over one tightly packed cup) for later use.

Evenly spread the remaining crumble mixture in the prepared baking dish, pressing lightly to form the crust.

In another bowl, gently mix the frozen blueberries, granulated sugar, cornstarch, lemon juice, and lemon zest until the blueberries are coated.

Pour the blueberry mixture over the crust in the baking dish, spreading it evenly.

Sprinkle the reserved crumble mixture on top of the blueberries, creating a deliciously crunchy topping.

Bake in the preheated oven for 40 to 45 minutes or until the blueberry filling is bubbling, and the crumble is golden.

Remove from the oven and let it cool for a few minutes before serving.

Serve warm with a scoop of vanilla ice cream or a dollop of whipped cream for an extra treat.

Sprinkle with hazelnuts, if desired.


Here's a tasty blueberry crumble that suits all occasions. Whether you enjoy it for breakfast, dessert, or as a special treat, this recipe is sure to impress. The combination of sweet blueberry filling and the buttery, crispy crumble topping is simply irresistible. So, gather your ingredients and get cooking – your taste buds will thank you!