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Blueberry Crumb Bars

Delicious homemade bars featuring fresh blueberries and preserves nestled between buttery oat crumb layers, topped with sliced almonds. These sweet and fruity treats combine the perfect balance of buttery crumble and juicy berries.

24 servings
1 hr 45 min
Published October 4, 2025

Ingredients

  • •2 cups all purpose flour
  • •1 cup old-fashioned oats
  • •1 cup golden brown sugar
  • •½ teaspoon salt
  • •¼ teaspoon ground cinnamon
  • •1 cup unsalted butter
  • •½ cup sliced almonds
  • •3 cups blueberries
  • •1 cup blueberry preserves
  • •1 tablespoon all purpose flour
  • •1 teaspoon lemon peel

Cooking Instructions

  1. 1.

    Preheat oven to 375°F. Butter bottom of 13x9x2-inch metal baking pan. Whisk flour, oats, sugar, salt, and cinnamon in large bowl. Add 1 cup butter; rub in with fingertips until mixture sticks together in small clumps.

    10 min

  2. 2.

    Transfer 2 cups to medium bowl; mix in almonds and reserve for topping.

    3 min

  3. 3.

    Press remaining crumb mixture evenly onto bottom of prepared pan. Bake crust until golden and just firm to touch, about 22 minutes. Cool 10 minutes.

    32 min

  4. 4.

    Mix all ingredients in medium bowl. Spread evenly over crust in pan, then sprinkle reserved topping over.

    5 min

  5. 5.

    Bake bars until filling bubbles thickly at edges and topping is golden brown, about 40 minutes; cool in pan on rack. Cut lengthwise into 4 strips, then cut each strip into 6 pieces, forming 24 bars.

    55 min

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