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Delicious blueberry crumble bars with a buttery topping

Blueberry Crumble Bars

Delightfully moist blueberry filling topped with a crunchy crumble, perfect for gatherings or a sweet treat at home.
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Prep Time 15 minutes
Cook Time 50 minutes
Total Time 1 hour 5 minutes
Servings: 12 bars
Course: Dessert, Snack
Cuisine: American
Calories: 250
Ingredients Method Notes

Ingredients
  

For the Crust
  • 3 cups all-purpose flour
  • 1 cup granulated sugar for the crust
  • 1 teaspoon baking powder
  • 1/2 teaspoon salt
  • 1 cup cold unsalted butter, cubed ensure butter is cold for flakiness
  • 1 large egg, lightly beaten
  • 1/2 teaspoon vanilla extract
For the Filling
  • 4 cups fresh blueberries you can substitute with other berries
  • 1/2 cup granulated sugar for the filling
  • 2 tablespoons cornstarch for thickening
  • 1 tablespoon lemon juice
  • 1 teaspoon lemon zest

Method
 

Preparation
  1. Preheat your oven to 375°F (190°C) and line a 9x13-inch baking pan with parchment paper.
  2. In a large bowl, whisk together the flour, 1 cup of sugar, baking powder, and salt.
  3. Cut in the cold butter until the mixture resembles coarse crumbs.
  4. Add in the beaten egg and vanilla extract, mixing until a clump forms.
  5. Press 2/3 of the dough firmly into the bottom of the baking pan and freeze for 15 minutes.
Making the Filling
  1. In another bowl, combine the blueberries, 1/2 cup sugar, cornstarch, lemon juice, and lemon zest.
  2. Gently mix to coat the blueberries without crushing them.
Baking
  1. Remove the crust from the freezer and spread the blueberry mixture evenly over the crust.
  2. Crumble the remaining dough over the blueberry layer.
  3. Bake for 45 to 50 minutes until the top is golden brown and the filling is bubbling.
  4. Cool completely in the pan before cutting into squares.
  5. Serve and enjoy!

Notes

For best results, let the bars cool completely before slicing to avoid squished filling. Store leftovers in an airtight container for up to five days, or freeze for longer storage.