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Easy Zesty Lemon Blueberry Baked Oatmeal Recipe for Perfect Breakfast

zesty lemon blueberry baked oatmeal - featured image

A bright and comforting baked oatmeal combining zesty lemon and sweet blueberries, perfect for a quick and wholesome breakfast or brunch.

Ingredients

Scale
  • 1 1/2 cups (135g) rolled oats (old-fashioned)
  • 1 cup (150g) fresh blueberries (frozen works too, thawed and drained)
  • 2 large eggs (room temperature)
  • 1 1/4 cups (300ml) milk (dairy or plant-based like almond or oat milk)
  • 2 teaspoons fresh lemon zest (finely grated)
  • 2 tablespoons lemon juice (freshly squeezed)
  • 1/3 cup (80ml) honey or maple syrup
  • 1 teaspoon vanilla extract
  • 1 teaspoon baking powder
  • 1/4 teaspoon salt
  • 2 tablespoons (28g) unsalted butter, melted
  • Optional: chopped almonds or walnuts for topping

Instructions

  1. Preheat your oven to 350°F (175°C). Grease a 9×9-inch (23×23 cm) baking dish lightly with butter or non-stick spray.
  2. In a large bowl, mix the dry ingredients: rolled oats, baking powder, and salt. Stir gently to combine.
  3. In a separate bowl, whisk the wet ingredients: beat eggs, then add milk, honey or maple syrup, lemon zest, lemon juice, vanilla extract, and melted butter. Mix until smooth.
  4. Pour the wet mixture into the dry ingredients and stir gently until moistened. Avoid overmixing.
  5. Fold in the blueberries gently. To avoid streaks, toss blueberries lightly in a teaspoon of flour before folding in.
  6. Transfer the batter to the prepared baking dish and smooth the top. Optionally sprinkle extra lemon zest or sliced almonds on top.
  7. Bake for 35-40 minutes until edges are golden and center is set but slightly jiggly. A toothpick should come out mostly clean with a few moist crumbs.
  8. Let cool for about 10 minutes before serving to allow the oatmeal to firm up.

Notes

Use fresh lemon zest for best flavor; dried lemon powder lacks brightness. Avoid overmixing to keep texture tender. Use rolled oats, not instant or steel-cut. If top browns too fast, tent with foil halfway through baking. Can assemble night before and bake fresh in morning. Frozen blueberries should be thawed and drained to prevent sogginess.

Nutrition

Keywords: baked oatmeal, lemon blueberry oatmeal, easy breakfast, healthy breakfast, baked oats, lemon zest, blueberry recipe, quick breakfast