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Irresistible Triple Berry Crumble Bars

triple berry crumble bars - featured image

These triple berry crumble bars feature a buttery, golden crust with a sweet-tart berry filling and a bright lemon glaze. Perfectly balanced in texture and flavor, they make a delightful homemade dessert for any occasion.

Ingredients

Scale
  • 2 ½ cups (312 grams) all-purpose flour
  • ¾ cup (150 grams) granulated sugar
  • ½ teaspoon salt
  • 1 cup (226 grams) unsalted butter, cold and cubed
  • 1 cup (90 grams) old-fashioned rolled oats
  • 3 cups (450 grams) mixed berries (blueberries, raspberries, blackberries), fresh or frozen
  • ⅓ cup (67 grams) granulated sugar
  • 2 tablespoons fresh lemon juice
  • 2 tablespoons cornstarch
  • 1 teaspoon vanilla extract
  • 1 cup (120 grams) powdered sugar
  • 2 tablespoons fresh lemon juice (for glaze)
  • 1 teaspoon lemon zest (optional)

Instructions

  1. Preheat your oven to 350°F (175°C). Line a 9×13-inch baking pan with parchment paper, leaving some overhang for easy lifting.
  2. In a large bowl, combine flour, granulated sugar, and salt. Add cold, cubed butter and work it into the flour using a pastry cutter or fingertips until mixture resembles coarse crumbs with some pea-sized pieces.
  3. Stir in rolled oats.
  4. Press two-thirds of the crumble mixture firmly and evenly into the prepared pan to form the base crust.
  5. In a separate bowl, gently toss mixed berries with granulated sugar, fresh lemon juice, cornstarch, and vanilla extract.
  6. Spread the berry mixture evenly over the crust.
  7. Sprinkle the remaining crumble mixture over the berries.
  8. Bake for 45-50 minutes until the crumble is deep golden brown and the berry filling is bubbly. If topping browns too quickly, tent loosely with foil for the last 10 minutes.
  9. Cool completely in the pan on a wire rack to let the filling set.
  10. Whisk together powdered sugar, fresh lemon juice, and lemon zest until smooth to make the lemon glaze.
  11. Drizzle the lemon glaze over the cooled bars.
  12. Cut into bars using the parchment overhang and a sharp knife, wiping the knife between cuts if needed.

Notes

Keep butter cold to achieve a crumbly texture. Use fresh lemon juice and zest for the best flavor in the glaze. If topping browns too fast, tent with foil during the last 10 minutes of baking. Let bars cool completely before glazing and cutting for clean slices. For extra juicy berries, add an additional tablespoon of cornstarch. Bars can be stored in the fridge up to 4 days or frozen up to 2 months.

Nutrition

Keywords: triple berry crumble bars, berry dessert, crumble bars, lemon glaze, easy dessert, homemade bars, summer dessert