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Oat and berry breakfast bake in a white baking dish with golden crust and bubbling blueberries, one square cut out

Oat and Berry Breakfast Bake

A one-bowl baked oatmeal with rolled oats and mixed berries that slices cleanly and reheats well all week.
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Prep Time 10 minutes
Cook Time 30 minutes
Total Time 40 minutes
Servings: 6 servings
Calories: 270
Ingredients Method Notes

Ingredients
  

Dry ingredients
  • 300 g (3 cups) old-fashioned rolled oats not quick oats
  • 1/2 tsp baking powder
  • 1 tsp ground cinnamon
  • 1/4 tsp fine salt
Wet ingredients
  • 480 ml (2 cups) milk whole milk or any plant-based milk
  • 2 large eggs
  • 3 tbsp maple syrup or honey
  • 2 tbsp melted coconut oil or unsalted butter plus extra to grease the dish
  • 1 tsp vanilla extract
Mix-ins
  • 250 g (about 2 cups) mixed berries fresh or frozen, do not thaw if frozen

Method
 

  1. Heat the oven to 190 C / 375 F. Grease an 8x8 inch baking dish with butter or coconut oil and set aside.
  2. In a large mixing bowl, combine the rolled oats, baking powder, cinnamon, and salt. Stir briefly to distribute the dry ingredients evenly.
  3. In a separate bowl or large measuring jug, whisk together the milk, eggs, maple syrup, melted coconut oil, and vanilla extract until smooth.
  4. Pour the wet mixture over the dry oat mixture and stir with a rubber spatula until everything is combined and no dry patches remain.
  5. Fold in two thirds of the berries gently, then pour the mixture into the prepared baking dish and spread it into an even layer.
  6. Scatter the remaining berries over the top, pressing them in slightly so they sit just at the surface.
  7. Bake for 28 to 32 minutes, until the top is lightly golden and the center feels set when pressed gently with your fingertip - it should spring back and not feel wet.
  8. Remove from the oven and rest in the dish for 10 minutes before cutting into squares and serving.

Notes

For the cleanest slices, let the bake cool fully to room temperature before cutting, then reheat individual squares as needed.