Lemon Blueberry Baked Oatmeal (Printable)

Warm baked oatmeal with fresh blueberries and zesty lemon, perfect for a wholesome morning meal.

# What You’ll Need:

→ Dry Ingredients

01 - 2 cups old-fashioned rolled oats
02 - 1/2 cup chopped walnuts or almonds (optional)
03 - 1 teaspoon baking powder
04 - 1/2 teaspoon ground cinnamon
05 - 1/2 teaspoon salt

→ Wet Ingredients

06 - 2 cups milk (dairy or plant-based)
07 - 1/4 cup maple syrup or honey
08 - 2 large eggs
09 - 1/4 cup unsalted butter, melted (or coconut oil)
10 - 1 tablespoon lemon zest (from about 1 large lemon)
11 - 1 teaspoon pure vanilla extract
12 - 2 tablespoons fresh lemon juice

→ Add-ins

13 - 1 1/2 cups fresh or frozen blueberries (do not thaw if frozen)

→ Topping

14 - 2 tablespoons coconut sugar or brown sugar (optional)

# How-to Steps:

01 - Preheat oven to 350°F. Lightly grease a 9x9-inch baking dish with butter or cooking spray.
02 - In a large mixing bowl, whisk together rolled oats, chopped nuts if using, baking powder, cinnamon, and salt until evenly distributed.
03 - In a separate bowl, whisk milk, maple syrup, eggs, melted butter, lemon zest, vanilla extract, and lemon juice until smooth and well blended.
04 - Pour the wet mixture into the dry ingredients and stir gently until just combined, being careful not to overmix.
05 - Gently fold in the blueberries, distributing them evenly throughout the batter while keeping them intact.
06 - Spread the mixture evenly in the prepared baking dish. Sprinkle coconut sugar or brown sugar over the top if desired for added sweetness and crunch.
07 - Bake for 35 minutes, or until the top is golden brown and the oatmeal is set. A knife inserted in the center should come out clean.
08 - Allow to cool for 5 minutes before serving. Serve warm with additional milk or yogurt on the side if desired.

# Expert Advice:

01 -
  • The lemon blueberry combo tastes like a morning muffin but with half the effort and twice the comfort.
  • It reheats beautifully, which means you can bake it once and eat well for days.
02 -
  • Frozen blueberries will bleed their color into the oats, which looks lovely but creates purple streaks throughout.
  • Do not skip the lemon zest, because the juice alone will not give you that bright fragrance.
03 -
  • Grate your lemon directly into the wet mixture so none of those precious oils escape onto your cutting board.
  • Toast the nuts before adding them for a deeper, nuttier flavor throughout.