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Blueberry Baked Oatmeal Squares

Two stacked, golden-brown Blueberry Baked Oatmeal Squares featuring visible oats and juicy baked blueberries.

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A simple recipe for making firm, chewy blueberry baked oatmeal squares perfect for meal prep and grab-and-go breakfasts.

Ingredients

Scale
  • 2 cups rolled oats
  • 1 teaspoon baking powder
  • 1/2 teaspoon salt
  • 1 teaspoon ground cinnamon
  • 1/4 cup maple syrup or honey
  • 1/4 cup melted coconut oil or butter
  • 1 large egg, lightly beaten
  • 1 1/2 cups milk (dairy or non-dairy)
  • 1 teaspoon vanilla extract
  • 1 1/2 cups fresh or frozen blueberries

Instructions

  1. Preheat your oven to 375 degrees Fahrenheit (190 degrees Celsius). Grease and line an 8×8 inch baking pan with parchment paper, leaving an overhang for easy removal.
  2. In a large bowl, combine the rolled oats, baking powder, salt, and cinnamon. Mix well.
  3. In a separate medium bowl, whisk together the maple syrup, melted oil or butter, egg, milk, and vanilla extract until combined.
  4. Pour the wet ingredients into the dry ingredients. Stir until just combined; do not overmix.
  5. Gently fold in the blueberries.
  6. Pour the mixture evenly into the prepared baking pan. Spread the batter to the edges.
  7. Bake for 30 to 35 minutes, or until the top is golden brown and a toothpick inserted near the center comes out mostly clean. The center should feel set.
  8. Let the oatmeal squares cool completely in the pan on a wire rack before lifting them out using the parchment paper overhang.
  9. Cut into 9 or 16 squares once fully cooled.

Notes

  • For a firmer square, reduce the milk slightly or add 1 tablespoon of ground flaxseed to the dry ingredients.
  • You can substitute brown sugar for maple syrup, using 1/3 cup packed brown sugar.
  • If using frozen blueberries, do not thaw them before adding them to the batter.
  • Store cooled squares in an airtight container in the refrigerator for up to 5 days.
  • These squares freeze well; wrap individual portions tightly and freeze for up to 3 months. Thaw overnight or reheat briefly in the microwave.

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