Perfect Blackberry Crumble Bars (Printable)

Tender buttery bars with juicy blackberries and golden crumb topping

# What You'll Need:

→ Crust & Crumble

01 - 2 cups all-purpose flour
02 - 1 cup granulated sugar
03 - 1/2 teaspoon baking powder
04 - 1/4 teaspoon salt
05 - 1/2 teaspoon ground cinnamon
06 - 1 cup unsalted butter, cold and cubed
07 - 1 large egg

→ Blackberry Filling

08 - 3 cups fresh blackberries or frozen, thawed and drained
09 - 1/2 cup granulated sugar
10 - 2 tablespoons cornstarch
11 - 1 tablespoon fresh lemon juice
12 - 1 teaspoon lemon zest

# How To Make It:

01 - Preheat oven to 350°F. Line a 9x9-inch baking pan with parchment paper, leaving an overhang for easy removal.
02 - In a large bowl, whisk together flour, sugar, baking powder, salt, and cinnamon until well combined.
03 - Add cold, cubed butter and blend with a pastry cutter or your fingers until mixture resembles coarse crumbs.
04 - Add the egg and mix until dough starts to come together. The mixture will remain crumbly.
05 - Press about two-thirds of the dough firmly into the bottom of the prepared pan to form an even crust layer.
06 - In a separate bowl, gently toss blackberries with sugar, cornstarch, lemon juice, and lemon zest until coated.
07 - Spread the blackberry mixture evenly over the pressed crust.
08 - Crumble the remaining dough evenly over the blackberry layer.
09 - Bake for 38 to 42 minutes until the top is golden brown and the filling is bubbling at the edges.
10 - Cool completely in the pan on a wire rack before lifting out and slicing into 16 bars.

# Expert Tips:

01 -
  • The dough doubles as both crust and topping so you make one mixture and youre done
  • These bars travel perfectly and actually taste better on day two when the berries have had time to settle into the crumble
02 -
  • Let these cool completely before slicing warm crumble is delicious but will fall apart
  • Frozen berries work if you drain them well after thawing or your filling will be too loose
03 -
  • Work quickly with the butter so it stays cold until it hits the oven
  • Use a pastry blender if you have one but clean hands work just as well