Description
A comforting, hearty breakfast that reheats beautifully and improves in flavor over several days. This easy meal prep recipe uses simple pantry staples to create a warm, chewy, and customizable oatmeal dish perfect for busy mornings.
Ingredients
- 3 cups old-fashioned rolled oats
- 1 tablespoon baking powder
- 1 teaspoon cinnamon
- ½ teaspoon salt
- 2 cups milk (dairy or plant-based)
- 2 large eggs
- ½ cup brown sugar
- 1 teaspoon vanilla extract
- 2 cups blueberries (fresh or frozen)
- Optional: ½ cup chopped walnuts or pecans
- Optional: ¼ cup chia seeds
- Optional Topping: 2 tablespoons rolled oats, 1 tablespoon brown sugar, pinch of cinnamon
Instructions
- Preheat oven to 350°F (175°C). Grease an 8×8 inch baking dish with butter or cooking spray.
- In a large mixing bowl, combine the rolled oats, baking powder, cinnamon, and salt. Stir to distribute evenly.
- In a separate bowl or large measuring cup, whisk together the milk, eggs, brown sugar, and vanilla extract until smooth and sugar is mostly dissolved.
- Pour the wet mixture into the dry ingredients and stir gently but thoroughly until all oats are coated. Let the mixture sit for 5 minutes to allow oats to absorb liquid.
- Stir in the blueberries. If using fresh blueberries, you may toss them in a little flour to prevent sinking.
- If using the optional topping, mix the topping ingredients and sprinkle evenly over the oatmeal, pressing gently to adhere.
- Bake for 40-45 minutes, or until the top is golden brown, edges are pulling away from the pan, and a knife inserted in the center comes out clean.
- Remove from oven and let cool for at least 15-20 minutes to allow the oatmeal to set before cutting into squares.
Notes
Do not use instant or steel-cut oats; old-fashioned rolled oats are required for the correct texture. Let the batter rest for 5 minutes before baking to ensure proper hydration. For best storage, let the oatmeal cool completely before covering to prevent condensation. Reheat with a splash of milk to restore moisture.
- Prep Time: 10 minutes
- Cook Time: 40-45 minutes
- Category: Breakfast
- Cuisine: American
Nutrition
- Serving Size: 1 square (1/8 of the
- Calories: 280
- Sugar: 18
- Sodium: 250
- Fat: 7
- Saturated Fat: 2
- Carbohydrates: 45
- Fiber: 5
- Protein: 10
Keywords: baked oatmeal, blueberry oatmeal, meal prep breakfast, make ahead breakfast, healthy oatmeal, gluten-free breakfast, easy breakfast recipe