Blueberry Oatmeal Crumble Bars

(Yields 10 servings; 239kcal, 9.7g fat, 36.9g carbs, 2.2g protein per serving)


  • Base:
  • 1 cup all purpose flour
  • 3/4 cup old fashioned oats
  • 1/2 cup granulated sugar
  • 1/4 cup packed dark brown sugar
  • 1/2 tsp cinnamon
  • 1/4 tsp salt
  • 1/2 cup unsalted butter, melted
  • 1 large egg yolk
  • 1 tbs brown sugar
  • Blueberries:
  • 2 cups blueberries, fresh and rinsed or frozen
  • 2 tbs lemon juice
  • 1 tbs chia seeds
  • 2 tsp cornstarch


  1. Preheat oven to 350. Line an 8×8 baking pan with parchment paper, leaving some paper hanging over the sides
  2. In a medium bowl, whisk together dry base ingredients. Stir in the melted butter and yolk.
  3. Remove about 3/4 cup of mixture and mix with 1 tbs extra brown sugar.
  4. Press the rest of the mixture into the bottom of the prepared pan.
  5. In a medium bowl, gently fold the blueberries, lemon juice, sugar, cornstarch, and chia seeds until berries are coated.
  6. Spoon berries onto the oatmeal base. Crumble the 1 cup of reserved oatmeal mixture over the berries.
  7. Bake for 45-55 minutes or until the blueberries are bubbling and the crumble is turning golden brown. If using frozen berries, baking time may be 50-60 minutes.
  8. Cool completely before removing using the excess parchment paper and slicing into bars.
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