Go Back Email Link
+ servings

Blackberry Crumble Pie

Delicious blackberry crumble pie with a golden crumb topping and fresh blackberries
An easy and rustic dessert featuring juicy blackberries topped with a crunchy oat crumble, perfect for any occasion.
Prep Time 15 minutes
Cook Time 45 minutes
Total Time 1 hour
Serving Size 8 servings

Ingredients

For the filling

  • 2 cups fresh blackberries (or frozen, thawed and drained)
  • 1 cup granulated sugar Adjust based on the tartness of the berries.
  • 2 tablespoons cornstarch For thickening the filling.
  • 1 tablespoon lemon juice Brightens the flavor of the berries.

For the pie crust

  • 1 pie crust (homemade or store-bought)

For the crumble topping

  • 1 cup all-purpose flour
  • 1/2 cup rolled oats Old-fashioned for better texture.
  • 1/2 cup brown sugar Can use light or dark.
  • 1/2 teaspoon cinnamon
  • 1/2 cup unsalted butter, cold and diced Key for crumble texture.

Instructions

Preparation

  • Preheat your oven to 350°F (175°C).
  • In a medium bowl, toss the blackberries with granulated sugar, cornstarch, and lemon juice until evenly coated. Set aside.
  • Fit the pie crust into a 9-inch pie pan and crimp the edges. Pour the blackberry mixture into the crust.
  • In another bowl, whisk together the flour, rolled oats, brown sugar, and cinnamon.
  • Cut in the cold diced butter until the mixture looks like coarse crumbs.

Baking

  • Evenly sprinkle the crumble mixture over the blackberry filling.
  • Bake for 40–45 minutes until the topping is golden brown and the filling is bubbling.
  • Let the pie cool on a rack for at least 20–30 minutes before slicing.

Notes

For additional brightness, use 1 teaspoon of lemon zest. You can substitute cornstarch with tapioca for a clearer filling. Serve warm with ice cream, whipped cream or crème fraîche.