Perfect Blackberry Crumble Bars (Printable)
Buttery bars with juicy blackberries and golden crumble topping. An easy treat perfect for picnics and snacks.
# What You'll Need:
→ For the 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
→ For the Blackberry Filling
08 - 3 cups fresh blackberries
09 - 1/2 cup granulated sugar
10 - 2 tablespoons cornstarch
11 - 1 tablespoon fresh lemon juice
12 - 1 teaspoon lemon zest
# How-To Steps:
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.
03 - Add cold, cubed butter and blend with a pastry cutter or fingers until mixture resembles coarse crumbs.
04 - Add the egg and mix until dough starts to come together. The mixture will be crumbly.
05 - Press about two-thirds of the dough firmly into the bottom of the prepared pan to form the crust.
06 - In another bowl, gently toss blackberries with sugar, cornstarch, lemon juice, and lemon zest.
07 - Spread the blackberry mixture evenly over the 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 bars.
# Expert Tips:
01 -
- The crust doubles as the crumble topping, so you make one dough and use it twice
- These bars travel beautifully and actually taste better on day two
02 -
- These bars must cool completely before slicing or they will fall apart
- Frozen berries work fine but thaw and drain them first to avoid a soggy bottom
03 -
- Chill the dough for 15 minutes if it feels too soft or sticky
- Sprinkle a little coarse sugar on top before baking for extra crunch