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+ servings
Blueberry crumble bars stacked up with blueberries on top

Blueberry Crumble Bars

Blueberry Crumble Bars have a thick, juicy blueberry filling and golden brown oatmeal crumble.  They're like blueberry crisp in bar form! 
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Ingredients

For the oatmeal crumble:

  • 1 1/4 cups all purpose flour
  • 1 1/4 cups old fashioned rolled oats
  • 1/3 cup coconut sugar
  • 1 teaspoon ground cinnamon
  • 1/4 teaspoon sea salt
  • 3/4 cup unsalted butter cold, cut into small cubes

For the filling:

  • 3 cups blueberries about 1 1/2 pints
  • 1/2 cup coconut sugar
  • 1 tablespoon lemon zest
  • 2 tablespoons fresh lemon juice
  • 2 tablespoons cornstarch

Instructions 

  • Preheat the oven to 350 degrees. Line an 8x8" baking dish with parchment paper or foil. Place the flour, oats, 1/3 cup sugar, cinnamon and salt in a medium bowl and stir well to combine.
  • Add the cold cubes of butter to the dry ingredients. Using a pastry cutter, fork or your hands, work the butter into the dry ingredients until the mixture resembles pea-sized crumbles.
    oatmeal crumble before and after mixing
  • Place the blueberries, 1/2 cup sugar, lemon zest and juice, and cornstarch in a medium bowl and stir until combined.
    blueberry-crumble-bar-filling
  • Press 2/3 of the oat crumble into the bottom of the prepared pan.
  • Pour the blueberry mixture evenly over the crumble.
    assemble blueberry crumble bars collage 1
  • Sprinkle the remaining 1/3 of the crumble over the blueberry mixture.
  • Bake for about 50 minutes until the center is bubbly, covering with foil after 30 minutes if the crumble is browning too quickly. Cool the blueberry crumble bars completely on a wire rack for a minimum of 3 hours or overnight until set. Cut into bars and enjoy!
    Blueberry crumble bars before and after baking

Notes

  • The coconut sugar may be substituted with granulated or brown sugar.
  • Make these bars gluten-free by substituting the all purpose flour with gluten-free 1 to 1 flour.
  • These bars may be made dairy free by substituting the butter with melted coconut oil. Simply stir it right into the dry ingredients!  See my raspberry crumble bars recipe for more information.

Nutrition

Serving: 1g, Calories: 353kcal, Carbohydrates: 48g, Protein: 4g, Fat: 17g, Saturated Fat: 10g, Polyunsaturated Fat: 6g, Cholesterol: 43mg, Sodium: 103mg, Fiber: 3g, Sugar: 23g

Nutrition is estimated using a food database and is only intended to be used as a guideline for informational purposes.

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