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Close up of Blueberry Crumb Bars stacked on a countertop.

Blueberry Crumble Bars

  • Author: Cookies & Cups
  • Prep Time: 20 minutes
  • Chill Time: 30 minutes
  • Cook Time: 40 minutes
  • Total Time: 1 hour 30 minutes
  • Yield: serves 20 1x
  • Category: Fruit
  • Method: Oven
  • Cuisine: Dessert

Description

Sweet  Blueberry Crumble Bars are going to be the hit of your next BBQ!


Ingredients

Scale

Crumble Mixture:

  • 1 1/2 cups all purpose flour
  • 1 1/2 cups old fashioned oats
  • 3/4 cups light brown sugar
  • 1/2 teaspoon kosher salt
  • 1 cup cold butter, cubed

Filling:

  • 1/2 cup granulated sugar
  • 3 tablespoons cornstarch
  • 2 1/2 cups blueberries
  • 1 tablespoon lemon juice

Instructions

  1. Line a 9×9 pan with parchment paper and coat with nonstick spray. Set aside.
  2. Crumble Mixture: In your blender or food processor pulse together flour, oats, brown sugar and salt until combined. Add in the cold butter and pulse until combined and resembles very coarse sand.
  3. Divide the mixture in half and press half into the bottom of the prepared pan to form the crust. Set aside.
  4. Filling: In a large bowl whisk together the granulated sugar and cornstarch. Add in the blueberries and coat in the sugar mixture. Add in the lemon juice and stir to combine.
  5. Spread the blueberries on top of the crust.
  6. Finally spread the remaining crust mixture on top of the blueberries and press lightly.
  7. Refrigerate the pan for 30 minutes.
  8. Preheat the oven to 350°F and bake for 35-40 minutes until the fruit starts to bubble.

Notes

Don’t over-bake, as the crust will become too hard.
Chilling the bars before baking is not optional!

Store airtight in the refrigerator for up to 3 days.

Keywords: cookies and cups, blueberry dessert, blueberry crumble, bar desserts, summer desserts

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