• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar

The Toasty Kitchen

  • Home
  • Recipe Index
  • Subscribe
  • About
  • FAQ
  • Navigation Menu: Social Icons

menu icon
go to homepage
  • Home
  • Recipes
  • Subscribe
  • About
  • FAQ

subscribe
search icon
Homepage link
  • Home
  • Recipes
  • Subscribe
  • About
  • FAQ

×
Home » Recipes » Breakfast

Blueberry Baked Oatmeal

Modified: May 8, 2025 · Published: May 25, 2021 by Heather · As an Amazon Associate I earn from qualifying purchases. · 879 words. · About 5 minutes to read this article.

Jump to Recipe

Blueberry baked oatmeal is filled with juicy blueberries and a hint of cinnamon. It makes the perfect summer breakfast and only takes about 5 minutes of prep to get a batch in the oven.

A slice of blueberry baked oatmeal on a plate.

Recipe summary

Flavor/texture: Lightly sweetened, chewy, and soft. Filled with juicy blueberries and a hint of cinnamon.

Pan size: 9x9 square

Serves: 9 people

Easy to customize: Blueberries and chia seeds can be substituted with your favorite mix-ins to create a unique flavor!

Great for meal prep: Store leftovers for 4 days in the refrigerator or 3 months in the freezer.

Jump to:
  • Recipe summary
  • Ingredients and substitutions
  • How to make blueberry baked oatmeal
  • Tips and tricks
  • Frequently asked questions
  • Recommended
  • 📖 Recipe
  • Comments

Ingredients and substitutions

Ingredients on a counter top.
  • Blueberries - Fresh or frozen blueberries work in this recipe. Frozen blueberries can go right into the batter from the freezer.
  • Eggs - Add structure to your oats.
  • Oats - Old fashioned oats work best for this recipe. Quick-cook oats are a bit too powdery and thin to add to baked oatmeal.
  • Brown sugar - Adds just a hint of sweetness to your baked oatmeal. If you like a sweeter oatmeal, add up to ¼ cup more sugar.
  • Butter - Melted butter incorporates easily into the batter. Unsalted or salted butter works in this recipe.
  • Milk - Hydrates the oats and adds moisture to the baked dish. I used whole milk, but any kind of milk, like skim or almond milk, will work in this recipe.
  • Flavor - Vanilla, salt, and cinnamon add flavor to your baked oats. Cinnamon could be omitted or substituted with a spice blend, like pumpkin pie spice, if desired.
  • Leavening - Baking powder helps your oatmeal rise slightly in the oven.
  • Chia seeds - Optional. Adds a bit of texture and fiber to your oats. Chia seeds can be substituted with ground flaxseed or more oats if desired.

How to make blueberry baked oatmeal

Making blueberry baked oatmeal and baking in a square metal pan.
  1. Add ingredients to a large bowl and stir to combine.
  2. Add blueberries and carefully stir to incorporate.
  3. Pour into a lightly greased 9x9 square baking pan.
  4. Bake until center looks set and no longer jiggly.

Tips and tricks

Cool slightly before serving - Allow your baked oatmeal to cool for 10 minutes before serving. Piping hot baked oatmeal can be difficult to slice and serve, and a few minutes of rest helps it firm up.

Variations - The base of this recipe is easy to customize with your favorite fruits, nuts, and more. Replace the blueberries with your favorite fruits like chopped apples, strawberries, raspberries, or sliced banana. Chia seeds can be substituted with flaxseed or sunflower seeds. One cup of chopped nuts like pecans or walnuts make a great addition.

Serve with extras - Add a dollop of Greek yogurt for some extra protein or serve your baked oatmeal in a bowl topped with milk. A drizzle of maple syrup or honey adds a hint of sweetness. Sausage, bacon, or scrambled eggs make great pairings with baked oatmeal.

Store for meal prep - Leftover squares will keep for up to 4 days in the refrigerator or up to 3 months in the freezer. Reheat in the microwave for a quick morning meal.

A pan of blueberry baked oatmeal on a countertop.

Frequently asked questions

Can baked oatmeal be frozen?

Yes, individual squares freeze well for up to 3 months.

Can I add other fruits?

Yes, the blueberries can be substituted with an equal amount of just about any chopped fruit you have on hand.

Can I make this dairy-free?

Yes, the milk can be substituted with your favorite dairy-free milk like oat milk or almond milk. The butter can be substituted with 3 tablespoons of oil (like melted coconut oil or olive oil).

Can I use frozen blueberries?

Yes, frozen blueberries can be added straight from the freezer into the batter.

Recommended

  • A square of strawberry baked oatmeal on a plate.
    Strawberry Baked Oatmeal
  • A square of pumpkin baked oatmeal on a plate.
    Pumpkin Baked Oatmeal
  • Five ingredient vanilla granola recipe.
    Five Ingredient Vanilla Granola
  • A glass filled with blueberry pineapple smoothie on a marble counter top.
    Blueberry Pineapple Smoothie

📖 Recipe

A slice of blueberry baked oatmeal on a plate.
Print Recipe
5 from 1 review

Blueberry Baked Oatmeal

Blueberry baked oatmeal is filled with juicy blueberries and a hint of cinnamon. It makes the perfect summer breakfast and only takes about 5 minutes of prep to get a batch in the oven.
Prep Time5 minutes minutes
Cook Time35 minutes minutes
Total Time40 minutes minutes
Servings: 9 squares
Calories: 281kcal
Author: Heather

Ingredients

  • 2 large eggs
  • 1 ½ cups (340 g) whole milk
  • ½ cup (106 g) brown sugar
  • ¼ cup (56 g) unsalted butter, melted
  • 2 teaspoons vanilla extract
  • 3 cups (267 g) old fashioned oats
  • ¼ cup (37 g) chia seeds, or flaxseed meal
  • 1 teaspoon baking powder
  • 1 teaspoon cinnamon
  • ½ teaspoon salt
  • 12 ounces (340 g) blueberries, fresh or frozen
Prevent your screen from going dark

Instructions

  • Preheat oven to 350℉. Lightly grease a 9x9 or 11x7 baking pan and set aside.
  • Add egg, whole milk, brown sugar, butter, vanilla, oats, chia seeds, baking powder, cinnamon, and salt to a bowl. Stir to combine.
  • Add blueberries and stir to incorporate. Pour batter into prepared pan.
  • For a softer texture, bake for about 35 minutes, or until the center looks almost set. For a firmer texture, bake for about 40 minutes, or until the center looks completely set.
  • Remove from oven and cool for 5 minutes before slicing and serving.

Equipment Recommendations

  • 9x9 square baking pan
  • Pyrex Glass Mixing Bowls
  • Nicewell Digital Kitchen Scale
  • Pyrex Liquid Measuring Cups

Notes

  • Storage: Baked oatmeal will keep for up to 4 days in the refrigerator, or up to 3 months in the freezer.
  • Reheating: Leftovers reheat well in the microwave, covered with a damp paper towel (from the refrigerator or frozen). An entire pan can be reheated in the oven at 350F for 15-20 minutes.
  • Mix-ins: Try stirring in ¼ cup of coconut flakes or 1 cup of chopped nuts before baking.
  • Serve with: Fresh fruit, a drizzle of maple syrup, or milk.

Nutrition Estimate

Serving: 1square | Calories: 281kcal | Carbohydrates: 40g | Protein: 7g | Fat: 11g | Saturated Fat: 5g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 3g | Trans Fat: 0.2g | Cholesterol: 55mg | Sodium: 166mg | Potassium: 286mg | Fiber: 5g | Sugar: 18g | Vitamin A: 300IU | Vitamin C: 4mg | Calcium: 135mg | Iron: 2mg
Course: Breakfast
Cuisine: American

More Breakfast Recipes

  • A cinnamon roll on a plate.
    S'mores Cinnamon Rolls
  • A square of coffee cake on a plate.
    Applesauce Coffee Cake
  • A sweet roll on a plate.
    Strawberry Sweet Rolls
  • A lemon sweet roll on a plate with a pan in the background.
    Lemon Sweet Rolls

Share this post:

Reader Interactions

Comments

    5 from 1 vote

    Leave a Reply Cancel reply

    Your email address will not be published. Required fields are marked *

    Recipe Rating




    This site uses Akismet to reduce spam. Learn how your comment data is processed.

  1. Linda C

    April 30, 2023 at 9:28 pm

    I make this regularly. So easy.

    Reply

Primary Sidebar

Heather of The Toasty Kitchen

Hi, I'm Heather!

I love cooking with simple, everyday ingredients and want to help you make homemade meals with ease.

Read more

Reader favorites

  • A metal fork in a bowl of cheesy rice.
    Cheesy Rice

  • Whipped buttercream frosting recipe.
    Whipped Buttercream Frosting

  • Beef roast in a large slow cooker.
    Slow Cooker Beef Roast with Potatoes and Carrots

  • Pouring gravy over a bowl of mashed potatoes.
    How To Make Gravy Without Drippings

Parties & Potlucks

  • Two glasses of punch.
    Spring Party Punch

  • A mint chocolate chip mini cheesecake unwrapped on a cutting board.
    Mint Chocolate Chip Mini Cheesecakes

  • A stack of birthday cake rice krispies treats.
    Birthday Cake Rice Krispies Treats

  • A stack of birthday cookie bars.
    Birthday Cookie Bars

Footer

featured on:

decorative image of website logos.

Explore

  • Recipe Index
  • About
  • FAQ
  • Subscribe

About

  • Privacy Policy
  • Disclaimer
  • Image Copyright
  • Contact

Copyright © 2025 The Toasty Kitchen®

Rate This Recipe

Your vote:




Let us know what you thought of this recipe:

This worked exactly as written, thanks!
My family loved this!
Thank you for sharing this recipe

Or write in your own words:

A rating is required
A name is required
An email is required

Recipe Ratings without Comment

Something went wrong. Please try again.