Baked Oatmeal with Berries
A warm, hearty baked oatmeal studded with juicy mixed berries. This make-ahead breakfast is perfect for busy mornings and can be enjoyed fresh from the oven or reheated.
What makes this recipe truly wonderful is its make-ahead nature. You can assemble it the night before, pop it in the oven in the morning, and have a warm, nourishing breakfast ready for the whole family. It's also a fantastic way to use up berries that are just past their prime – they become even more delicious when baked.
Serve it straight from the pan with a dollop of yogurt or a drizzle of maple syrup, or let it cool and slice it into bars for an on-the-go snack. This baked oatmeal is a versatile, wholesome dish that will quickly become a breakfast staple.
Ingredients
- 3 cups rolled oats (not quick-cooking)
- 1 teaspoon baking powder
- 1 teaspoon ground cinnamon
- 1/2 teaspoon fine sea salt
- 1/4 teaspoon ground nutmeg (optional)
- 2 large eggs
- 1 3/4 cups milk of choice (dairy, almond, or oat milk)
- 1/3 cup pure maple syrup, plus extra for serving
- 2 tablespoons melted coconut oil or unsalted butter
- 1 teaspoon vanilla extract
- 1 cup mixed fresh or frozen berries (such as blueberries, raspberries, and sliced strawberries), plus extra for topping
- 1/4 cup chopped pecans or walnuts (optional)
Instructions
- Preheat the oven to 375°F (190°C). Lightly grease a 9x9-inch (or similar) baking dish with coconut oil or butter.
- In a large bowl, whisk together the rolled oats, baking powder, cinnamon, salt, and nutmeg (if using).
- In a separate medium bowl, whisk the eggs, milk, maple syrup, melted coconut oil, and vanilla extract until well combined.
- Pour the wet ingredients into the dry ingredients and stir until just combined. Let the mixture sit for 5 minutes to allow the oats to absorb some liquid.
- Gently fold in 3/4 cup of the mixed berries and half of the nuts (if using).
- Transfer the mixture to the prepared baking dish and spread it evenly. Scatter the remaining berries and nuts over the top.
- Bake for 35–40 minutes, or until the center is set and the top is golden brown. A toothpick inserted into the center should come out mostly clean (it will have a slight moisture from the berries).
- Remove from the oven and let cool for at least 10 minutes before serving. Serve warm with a drizzle of maple syrup, a splash of milk, or a dollop of yogurt.
Cook’s tips
- For a gluten‑free version, use certified gluten‑free rolled oats.
- If you prefer a firmer, sliceable texture, use less milk (1 1/2 cups) and bake for an extra 5 minutes.
- Let the baked oatmeal cool completely, then refrigerate overnight to make perfect breakfast bars.
Substitutions
- Swap the maple syrup for honey (if not strictly vegan) or date syrup.
- Use any combination of berries you like – peaches, apples, or bananas also work well.
- Replace the nuts with seeds like pumpkin or sunflower seeds for a nut‑free option.
Storage & reheating
Store leftover baked oatmeal in an airtight container in the refrigerator for up to 5 days. Reheat individual portions in the microwave or oven with a splash of milk to restore creaminess.
FAQ
Can I make this baked oatmeal ahead of time?
Yes! Assemble the entire dish (without baking) the night before, cover it, and refrigerate. In the morning, simply bake as directed, adding about 5 extra minutes to the cooking time since it starts cold.
Are frozen berries okay to use?
Absolutely. Frozen berries work perfectly – do not thaw them first, as they will release too much juice. Toss them in straight from the freezer, and they will bake beautifully.
Can I make this vegan?
Yes. Replace the eggs with 1/4 cup of applesauce or 2 tablespoons of ground flaxseed mixed with 6 tablespoons of water (let it thicken for 5 minutes). Use a plant‑based milk and coconut oil instead of butter.
How do I know when it's done?
The baked oatmeal is ready when the top is golden brown and the center is set – it should not be jiggly. A toothpick inserted near the center will come out with a few moist crumbs, but not wet batter.
