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Crispy One-Bowl Blackberry Crumble Bars

crispy one-bowl blackberry crumble bars - featured image
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These crispy one-bowl blackberry crumble bars feature a nutty brown butter crust and a tart-sweet blackberry filling, perfect for easy homemade desserts that come together quickly.

Ingredients

Scale
  • 1 cup (227 g) unsalted butter, browned
  • 3/4 cup (150 g) granulated sugar
  • 1/2 cup (110 g) light brown sugar, packed
  • 2 1/2 cups (315 g) all-purpose flour
  • 1 cup (90 g) old-fashioned rolled oats
  • 1/2 teaspoon salt
  • 1/2 teaspoon baking powder
  • 3 cups (450 g) fresh blackberries, rinsed and drained
  • 1/3 cup (65 g) granulated sugar
  • 1 tablespoon lemon juice
  • 2 tablespoons cornstarch
  • 1 teaspoon vanilla extract

Instructions

  1. Brown the butter in a medium saucepan over medium heat, stirring frequently until golden brown and nutty, about 5 minutes. Remove from heat and let cool slightly.
  2. In a large bowl, combine flour, rolled oats, granulated sugar, light brown sugar, salt, and baking powder. Stir well.
  3. Pour the cooled brown butter into the dry mixture and mix with a wooden spoon or spatula until crumbly but starting to come together.
  4. Reserve 1 1/2 cups (180 g) of the crumble mixture for the topping and set aside.
  5. Press the remaining crumble mixture firmly and evenly into the bottom of a greased 8×8-inch baking pan to form the crust.
  6. In a small bowl, gently toss blackberries with sugar, lemon juice, cornstarch, and vanilla extract, being careful not to smash the berries.
  7. Spread the blackberry filling evenly over the crust.
  8. Sprinkle the reserved crumble mixture evenly over the berry filling.
  9. Bake in a preheated oven at 350°F (175°C) for 35-40 minutes until the topping is golden brown and the filling is bubbly.
  10. Cool completely on a wire rack for at least 1 hour before slicing.

Notes

Keep the heat medium-low when browning butter and stir constantly to avoid burning. Toss berries gently with cornstarch to prevent soggy crust. Press crust firmly but not too tightly. Cool bars completely before slicing to avoid messy filling. Tent with foil if edges brown too quickly.

Nutrition

Keywords: blackberry crumble bars, brown butter crust, one-bowl dessert, easy homemade dessert, summer dessert, berry bars, crumble bars

Find it online: https://cheerycrisp.com/crispy-one-bowl-blackberry-crumble-bars-recipe-perfect-for-easy-homemade-desserts/