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Blueberry Crumb Bars Recipe

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 4.3 from 15 reviews
  • Author: Lora
  • Prep Time: 25 minutes
  • Cook Time: 40 minutes
  • Total Time: 1 hour 20 minutes
  • Yield: 15 servings
  • Category: Dessert
  • Method: Baking
  • Cuisine: American
  • Diet: Vegetarian

Description

Delight in these homemade Blueberry Crumb Bars featuring a buttery crumb crust and a luscious fresh blueberry filling. Perfectly sweetened and baked to golden perfection, these bars are ideal for breakfast, dessert, or a sweet snack any time of day.


Ingredients

Crust and Crumb Topping

  • 3 cups (390g) all-purpose flour (spoon and leveled)
  • 1/2 cup (100g) granulated sugar
  • 1/2 cup (100g) brown sugar
  • 1 tsp baking powder
  • 1/4 tsp salt
  • 1 large egg
  • 1 1/2 tsp vanilla extract
  • 1 cup (226g) unsalted butter, chilled and cut into cubes

Blueberry Filling

  • 1 Tbsp (9g) cornstarch
  • 1/2 cup (100g) granulated sugar
  • 1 1/2 Tbsp (22ml) lemon juice
  • 4 cups (538g) fresh blueberries, at room temperature


Instructions

  1. Preheat and Prepare Pan: Preheat your oven to 375°F (190°C). Lightly butter a 9x13-inch baking dish; optionally, line it with parchment paper and butter the parchment to make removing the bars easier later.
  2. Mix Dry Ingredients for Crust: In a large mixing bowl, whisk together the flour, 1/2 cup granulated sugar, brown sugar, baking powder, and salt until well combined.
  3. Combine Wet Ingredients: In a separate small bowl, whisk the egg and vanilla extract until thoroughly mixed.
  4. Cut in Butter and Egg Mixture: Add the cold butter cubes and egg mixture into the dry ingredients. Using a fork or pastry cutter, cut everything together until the mixture resembles coarse crumbs with some pea-sized pieces.
  5. Form Bottom Crust: Press half of the crumb mixture evenly into the prepared baking dish, creating an even layer that will serve as the crust.
  6. Prepare Blueberry Filling: In another bowl, whisk together the remaining 1/2 cup granulated sugar and cornstarch. Add lemon juice and stir to combine. Fold in the fresh blueberries gently, tossing until they are evenly coated with the mixture.
  7. Assemble Filling Layer: Pour and spread the coated blueberries evenly over the pressed crust in the baking dish.
  8. Add Crumb Topping: Sprinkle the remaining half of the crumb mixture evenly over the blueberry layer to form the topping.
  9. Bake: Place the baking dish in the preheated oven and bake for 38 to 42 minutes, or until the crumb topping is golden brown and the blueberry filling is bubbly.
  10. Cool: Remove the bars from the oven and allow them to cool for 20 to 30 minutes, which will help them set and make cutting easier.
  11. Store and Serve: Store cooled bars in an airtight container in the refrigerator. To serve warm, reheat individual portions in the microwave for 10 to 15 seconds if desired.

Notes

  • For easier slicing and removal, line the baking dish with parchment paper and butter it before pressing in the crust.
  • Ensure blueberries are at room temperature before mixing to avoid excess moisture, which can make the crust soggy.
  • Chilling the butter thoroughly before cutting into the flour mixture is key to achieving a crumbly texture.
  • These bars can be stored in the refrigerator for up to 5 days and freeze well for up to 2 months.