Believe it or not, the secret to this awesome recipe is the crumble.

4 cups fresh blackberries
1/2 cup granulated sugar
1 tablespoon lemon juice
1 cup all-purpose flour
1/2 cup rolled oats
1/2 cup brown sugar
1/2 teaspoon ground cinnamon
1/4 teaspoon salt
1/2 cup unsalted butter, chilled and cubed

Preheat your oven to 375°F (190°C).

In a large mixing bowl, combine the blackberries, granulated sugar, and lemon juice. Toss gently to coat the berries evenly.

Transfer the blackberry mixture to a greased 9-inch baking dish, spreading it out evenly.

In another bowl, mix together the flour, oats, brown sugar, cinnamon, and salt.

Add the chilled, cubed butter to the dry ingredients, and use your fingers or a pastry cutter to blend until the mixture resembles coarse crumbs.

Sprinkle the crumble mixture evenly over the blackberries in the baking dish.

Bake in the preheated oven for 35-40 minutes, or until the topping is golden brown and the blackberries are bubbling.