Blueberry Crumble Bars

9 ingredients
4 steps

Ingredients

  • 1 1/2 cups all-purpose flour
  • 1 1/2 cups quick cooking oats
  • 1 1/2 cups white sugar, divided
  • 1/2 teaspoon ground cinnamon
  • 1/2 teaspoon baking soda
  • 3/4 cup cold butter
  • 2 cups blueberries
  • 2 tablespoons cornstarch
  • 2 tablespoons lemon juice

Directions

  1. 1
    Preheat oven to 375 degrees F (190 degrees C). Grease a 9x13-inch baking dish.
  2. 2
    Combine flour, oats, 1 cup sugar, cinnamon, and baking soda in a large bowl. Cut butter into flour mixture until it resembles coarse crumbs. Reserve about 2 cups flour-butter mixture. Press remaining mixture into the prepared baking dish to form a crust.
  3. 3
    Bring blueberries, remaining 1/2 cup sugar, cornstarch, and lemon juice to a boil in a saucepan, stirring constantly, until mixture is thickened, about 2 minutes. Spread blueberry mixture over crust and sprinkle with reserved oat mixture.
  4. 4
    Bake in the preheated oven until topping is just browned, about 25 minutes. Cool before cutting and serving.

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