Blueberry Baked Oatmeal

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Fresh blueberries, old-fashioned oats, brown sugar, and cinnamon combine to create this warm and comforting Blueberry Baked Oatmeal. This one-bowl breakfast can be made in less than an hour and is perfect for everything from lazy Sunday mornings to brunch with friends!

blueberry baked oatmeal

Blueberry Baked Oatmeal

This blueberry baked oatmeal is the perfect balanced breakfast!

Packed with nutritious fruit, fibrous whole grains, and protein-packed milk and eggs, this sweet dish is one you can feel good about eating.

The best part? This entire meal can be made in one bowl in less than an hour! Plus, you can prepare your baked oatmeal ahead of time and store it in the fridge until you’re ready to enjoy it. You can even save your leftovers to eat on a busy weekday morning or as a healthy late-afternoon snack.

Why You should make this Baked Oatmeal Recipe

  • Tastes delicious.  If you haven’t had the opportunity to experience the delight of an oatmeal bake, then you’re truly missing out! This blueberry baked oatmeal almost tastes like you’re indulging in a warm, soft oatmeal cookie. Indulge your taste buds with this delightful breakfast option while enjoying all the nutritional benefits of a hearty bowl of oats.
  • Good for you: Not only is this breakfast recipe simple and quick to put together, but it’s also incredibly filling and nutritious, making it a perfect option to make sure that your family will have a healthy start to their day. Oats are naturally rich in fiber, which promotes fullness. Plus, they contain many gut-healthy nutrients and essential vitamins and minerals.
  • Perfect for make-ahead breakfasts. Preparing blueberry baked oatmeal is a breeze and takes just a few minutes; plus, if you love to meal prep, you can make a large quantity in one go, so you’ll enough breakfasts for the week. 

Ingredients Needed + Tips

(Ingredients at a glance, you will find the full recipe with ingredient amounts in the printable recipe card at the bottom of the post.)

ingredients in blueberry baked oatmeal
  • Old Fashioned Oats—A healthy whole grain that adds a ton of fiber and the perfect amount of chew to this baked oatmeal. You could use quick-cook oats in a pinch; just keep your eye on the cooking time as the quick-cook oats will reduce the cooking time a bit.
  • Blueberries—Fresh is best for this recipe. Frozen can be used as well, but frozen berries will release a bit more juice when cooking.
  • Brown Sugar—Adds just a touch of caramelly sweetness. If you would like to reduce the sugar, there are a few suggestions below under recipe variations.
  • Milk—Any milk from whole to skim or any other kind of plant-based milk will work in this recipe.
  • Egg—Large-size eggs are what is recommended in this recipe; the egg helps binds all the other baked oatmeal ingredients together.
  • Butter—Adds a hint of salt and a ton of rich flavor.
  • Cinnamon—Just a dash will add a sense of warmth to this comfort dish.
  • Baking soda—The baking soda helps make the baked oatmeal soft and fluffy.

Equipment You’ll Need

This super simple baked blueberry oatmeal can be made with basic kitchen tools that you likely already have lying around—no special equipment required! Just make sure that you have a large mixing bowl, a whisk, a wooden spoon or rubber spatula, and an 8×8” baking dish.

How to Make the Best Blueberry Baked Oatmeal

  1. Mix the dry ingredients: In a large bowl, whisk together the old-fashioned oats, baking soda, cinnamon, and brown sugar.
  2. Mix in the wet ingredients: Add your milk, slightly melted butter, and an egg and mix until thoroughly incorporated. how to make blueberry baked oatmeal
  3. Add the mixture to a baking pan: Transfer the oatmeal mixture to a well-greased baking dish and add the blueberries. how to make blueberry baked oatmeal
  4. Bake: Bake for 35 to 45 minutes. The edges of the oatmeal should begin to pull away from the sides of the baking dish. just out of the oven blueberry baked oatmeal
  5. Cool and enjoy: Allow your blueberry baked oatmeal to cool slightly before serving and enjoying!

Tips and Tricks

  • When baked, frozen blueberries tend to release more juice than fresh blueberries. To combat this, reduce the amount of milk used by ¼ cup.
  • In a rush? Leftover blueberry baked oatmeal is just as good cold as it is reheated! Feel free to eat a serving straight out of the fridge.
  • Baked blueberry oatmeal can be assembled ahead of time and stored in the fridge for up to 24 hours.
blueberry baked oatmeal on a wooden spoon

How to Store Leftover Baked Oatmeal

  • To Refrigerate: Place any leftover blueberry baked oatmeal in an airtight container and store it in the fridge for up to 5 days.
  • To Freeze: You can store your airtight container of leftover oatmeal in the freezer for up to 6 months.
  • To Reheat: Simply pop your frozen or refrigerated blueberry oatmeal into the microwave and heat in 30-second intervals until warmed to your liking.

Recipe Variations

Ready to take your baked oatmeal game to the next level? Use this recipe as a base and swap out a few ingredients to create a wide variety of different baked breakfasts! Below are a few ideas to get you started.

  • Prefer less sugar in your oatmeal? You can replace the brown sugar with two ripe, smushed bananas. The oatmeal will be less sweet with a hint of banana flavor, but still quite yummy. You could also replace the brown sugar with a cup-for-cup brown sugar substitute like this Surkin Gold Brown Sugar Substitute.
  • Make a chocolate baked oatmeal by adding some cocoa powder and chocolate chips. This is delicious served with a big dollop of vanilla greek yogurt!
  • Big fan of warm spices? You don’t have to stop after cinnamon; try adding some cloves, nutmeg, ginger, and allspice as well!
  • Create vegan blueberry baked oatmeal by replacing whole milk and butter with your favorite plant-based alternatives.
  • Make oatmeal cups instead by baking the oatmeal in a muffin tin at 350 F for about 25 to 30 minutes.
blueberry baked oatmeal

Frequently Asked Questions

Can I use fruit other than blueberries?

Absolutely! This baked oatmeal base pairs super well with a ton of your favorite fruits. Try swapping out the blueberries for diced apples, cherries, peaches, blackberries, raspberries, pears, or bananas.

Can I use Almond Milk?

Yes, almond and other plant-based milk work fine.

Can I use quick oats instead of old-fashioned oats?

You can; just be aware that this will reduce the cooking time. Be sure to keep an eye on your oatmeal as it bakes and pull it out of the oven as soon as the oats are cooked through.

Can this blueberry baked oatmeal be made ahead of time?

Yes, baked blueberry oatmeal can be assembled ahead of time and stored in the refrigerator for up to 24 hours.

If you would like to freeze the baked oatmeal, you have two options: 1. Freeze before baking – cover the assembled oatmeal with plastic wrap and then foil and place in the freezer. Defrost overnight in the fridge and bake according to the recipe instructions. Or 2. Bake the oatmeal as directed. Let cool and cut into squares. Wrap each square individually in plastic wrap, place in an airtight container and then freeze. (This is my preferred method as it allows me to thaw one serving at a time.) For best results, you will want to eat the oatmeal within six months.

When you’re ready to eat the frozen oatmeal, Thaw overnight in the fridge and then reheat it in the microwave.

Is baked oatmeal healthy?

Relatively speaking, yes. Oats are fibrous whole grains, milk and eggs are packed with protein, and blueberries are full of healthy nutrients.

If you’d like to make this baked oatmeal even healthier, you can try swapping out the brown sugar for maple syrup or bananas and half the butter with apple sauce. You could also replace the butter with coconut oil. Add extra protein by adding an additional egg or protein powder.

How many calories are in oatmeal?

There are 150 calories in one-half cup of dry old-fashioned rolled oats. A serving of this Blueberry Baked Oatmeal (made with almond milk and divided into six servings) is 323 calories.

Is this recipe Gluten-Free?

Make sure your oats are certified gluten-free, and you are good.

close up photo of a spoonful of blueberry baked oatmeal

Did You Make this Blueberry Baked Oatmeal?

Please leave a star ⭐️⭐️⭐️⭐️⭐️ rating and/or a review in the comments section below. If you share an image on Instagram or Facebook, be sure to tag me and use #scatteredmomrecipes!

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blueberry baked oatmeal

Blueberry Baked Oatmeal

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 5 from 2 reviews
  • Author: Jamie Sanders
  • Prep Time: 5 minutes
  • Cook Time: 35 minutes
  • Total Time: 40 minutes
  • Yield: 6 servings 1x
  • Category: breakfast
  • Method: oven


Fresh blueberries, old-fashioned oats, brown sugar, and cinnamon combine to create this warm and comforting Blueberry Baked Oatmeal. This one-bowl breakfast can be made in less than an hour and is perfect for everything from lazy Sunday mornings to brunch with friends!


  • 2 cups old fashioned oats
  • 1/2 tsp baking soda
  • 1.5 tsp ground cinnamon
  • ½ cup light brown sugar
  • 1.5 cups milk
  • 1/3 cup salted butter, partially melted
  • 1 large egg
  • 2 cups fresh blueberries


  1. Preheat the oven to 350 degrees Fahrenheit.
  2. In a large bowl, combine the oats, baking soda, cinnamon, and brown sugar.
  3. Add the milk, butter, and egg and whisk the ingredients together until homogenous.
  4. Pour the oatmeal mixture into an 8×8 baking dish and sprinkle the blueberries over the top of the oatmeal.
  5. Bake the dish for 35 to 45 minutes and allow it to cool slightly before serving.
  6. Serve warm or cold and enjoy!


  • It is best to use fresh blueberries in this dish, but if you do not have access to any, you can always use frozen blueberries.
  • If using frozen blueberries, you can use ¼ cup less milk because the frozen blueberries will contain more liquid.
  • You can store this dish in the fridge for up to 5 days. You can either eat it cold or reheat it in the microwave on 30 second intervals until heated all the way through.


  • Serving Size: 1/6 of recipe
  • Calories: 323
  • Fat: 15
  • Carbohydrates: 39
  • Fiber: 3
  • Protein: 9

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  1. Love this! Made it 2 twice, both non dairy. But added a half cup of walnuts the second time. I like to have a good fat with every meal. Thank you for sharing.

  2. Made this last night for breakfast today. Lovely when heated up and a little milk added. Next time I may add a little more cinnamon and perhaps a pinch of cloves and a dash of nutmeg. On the whole, an Excellent Breakfast! Thanks for the recipe! 🙂

    1. Jamie Sanders says:

      I also like to add a bit more milk over the top when serving. I think I will add that to the tip section. Thank you so much!