Blackberry Baked Oatmeal

This blackberry baked oatmeal is sweetened with real maple syrup and bursting with juicy blackberries in every bite. It's a make-ahead breakfast that's hearty enough to keep you full while still feeling just a little special.

Plated blackberry oatmeal with a dollop of greek yogurt and more berries on top.

I was late to the baked oatmeal party but once I tried it, there was no going back. This blackberry baked oatmeal is a favorite around here, but one of the best things about baked oats is how customizable they are. Think of this recipe as your solid, reliable base with lots of room to play.

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Quick Look at this Blackberry Baked Oatmeal

  • Ready In: 50 minutes
  • Serves: 9
  • Main Flavors: Sweet maple syrup, juicy blackberries, warm cinnamon
  • Equipment: Mixing bowls and an 8x8 baking dish
  • Great For: Meal prep, busy mornings, weekend brunch, and breakfast for dinner

Ingredient Notes

Here's a few tips on some of the ingredients of this recipe. For full measurements, see the recipe card below:

  • Old-fashioned oats - Old-fashioned rolled oats provide the best texture. Quick oats tend to become soft and mushy, while steel-cut oats won't fully cook in the baking time. Look for specifically labeled gluten-free oats if needed.
  • Maple syrup - Please use the real stuff. Pure maple syrup gives this baked oatmeal a rich flavor without refined sugar. Pancake syrup won't provide the same taste.
  • Milk - Whatever kind you have on hand. Non-dairy versions like almond, soy or oat milk can be used interchangeably
  • Melted butter - Provides flavor and richness to the baked oatmeal. You can substitute melted coconut oil for a dairy-free sub
  • Blackberries - Fresh blackberries work best because frozen berries release extra moisture and can make the oatmeal softer. Substitute raspberries, blueberries or a combo.

Quick Tip: If your blackberries are extra large, cut them in half so they distribute more evenly throughout the baked oatmeal.

How to Make Blackberry Baked Oatmeal

This recipe comes together quickly, no mixer required.

Step 1: Combine oats and dry ingredients in a large bowl.

Step 2: In a separate bowl combine all the wet ingredients.

Step 3: Add the dry ingredients to the wet and stir until no dry spots are left.

Step 4: Fold gently fold 1 cup of blackberries (about 1 - 6 oz. clamshell) into the oat mixture. Place batter in a greased 8x8 baking dish. Top with more blackberries.

For extra texture, add some chopped walnuts or pecans (about ½ cup) to the batter.

Clamshell of blackberries poured into oatmeal batter
Hand placing whole blackberries on top of oatmeal batter.

Step 5: Bake at 350 degrees for 40-45 minutes until the middle is set and the top is golden brown.

Let the blackberry baked oatmeal cool for about 10 minutes before slicing to allow it to set. This will help you cut it into squares without it falling apart.

Overhead view of baked oatmeal in white baking dish with whole blackberries on top.

How to Serve Blackberry Baked Oatmeal

Cut baked oatmeal into 9 squares and serve with maple syrup, Greek yogurt or extra berries. The texture of baked oatmeal is somewhere between traditional oatmeal and bread pudding. It's soft, hearty, and sliceable rather than creamy like stovetop oatmeal.

Serve it on its own or pair it with fresh fruit, eggs, or breakfast sausage (or bacon) for a more filling meal.

Spatula lifting square of baked oatmeal out of baking dish.

Storage & Reheating Tips

Since baked oatmeal reheats so well, it's a great recipe to make on Sunday and enjoy throughout the week for quick breakfasts.

Refrigerator:
Store leftovers in an airtight container for up to 5 days.

Freezer:
Freeze baked oatmeal squares for up to 3 months. Thaw overnight in the fridge before reheating.

Reheating:
Microwave individual portions in 30-second intervals until warmed through.

Even quick breakfasts count as family mealtime. Join my email list for easy recipes and simple ideas that help make everyday mealtimes more meaningful morning, noon, or night.

FAQ

Why is my baked oatmeal gummy or mushy?

Gummy baked oatmeal usually comes from using quick oats instead of old-fashioned oats, over-mixing the batter, or adding too much fruit. Stick with rolled oats and gently fold everything together for the best texture.

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📖Recipe

📖 Recipe

Featured image of plated blackberry oatmeal.
Ashley Leonard

Blackberry Baked Oatmeal

No ratings yet
Prep Time 10 minutes
Cook Time 40 minutes
Total Time 50 minutes
Servings: 9 servings
Course: Baked Goods, Breakfast
Cuisine: American

Ingredients
  

  • 2 cups old-fashioned oats
  • 1 tsp. baking powder
  • 1 tsp. cinnamon
  • ½ tsp. salt
  • 2 cups milk
  • cup real maple syrup
  • ¼ cup butter melted
  • 2 eggs
  • 1 tsp. vanilla extract
  • 1 ½ cups blackberries divided

Method
 

  1. Preheat oven to 350 degrees. Lightly grease an 8x8 baking pan.
  2. In a bowl combine oats, baking powder, salt and cinnamon.
    2 cups old-fashioned oats, 1 tsp. baking powder, ½ tsp. salt, 1 tsp. cinnamon
  3. Add milk, syrup, butter, eggs and vanilla. Mix until just combined.
    2 cups milk, ⅓ cup real maple syrup, ¼ cup butter, 2 eggs, 1 tsp. vanilla extract
  4. Gently fold in 1 cup of blackberries. Pour batter into greased pan. Sprinkle top with remaining berries.
    1 ½ cups blackberries
  5. Bake for 40-45 minutes until the center is set and top is lightly golden. Let sit 10 minutes before serving.

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