Apple Cinnamon Baked Oatmeal

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There’s something about the smell of apples and cinnamon baking that feels like home. This apple cinnamon baked oatmeal is one of those simple, comforting recipes you’ll find yourself making again and again.

A slice of homemade apple cinnamon baked oatmeal on a plate.

It’s warm, filling, and full of cozy fall flavor, but just as good any time of the year. Perfect for meal prep or lazy weekend mornings, this make-ahead breakfast comes together in one bowl and bakes up into soft, lightly sweetened squares your whole family will love.

You’ll definitely want to add this to your list of easy breakfast recipes to make.

Why You’ll Love This
Apple Cinnamon Baked Oatmeal

  • Make Ahead:
    This baked oatmeal recipe is so easy to make ahead of time, perfect for breakfast meal prep.
  • One Bowl:
    Mixes up quickly and with just one bowl, making cleanup a breeze.
  • Flexible:
    You’ll love how easy it is to adjust the flavors to your family’s tastes by using your favorite fruit.
  • Kid Approved:
    Loaded with sweet fruit, even picky eaters will love this breakfast treat.

Ingredient Notes

Make sure to check the recipe card for a full list of ingredients and measurements.

  • Rolled Oats – The perfect oats for this recipe. You can also find them in the store called old-fashioned oats, or large flake oats. They are larger and thicker than minute oats and will hold up better to cooking without turning mushy.
  • Brown Sugar – Helps the top of the oatmeal to crisp and gives it a nice golden brown color, along with just the right amount of sweetness.
  • Baking Powder – Helps the baked apple oatmeal to rise and have a softer texture.
  • Cinnamon – Ground cinnamon brings a lovely warmth and flavor to the dish.
  • Salt – Helps to bring out the flavors of the other ingredients.
  • Butter – Adds to the richness of the oatmeal bake, but you can substitute vegetable oil or coconut oil.
  • Vanilla – Always a must, it helps to enhance the sweetness and flavors.
  • Apples – You can use any of your favorite apple varieties. I often use Macintosh, IDA Red, honeycrisp, or fuji, but if you prefer a tart flavor, Granny Smiths would work great too.

How To Make Apple Cinnamon Baked Oatmeal

Oatmeal, brown sugar, salt, cinnamon, and baking powder in a large mixing bowl.
Dry ingredients mixed together.

Preheat your oven to 350°F. Lightly grease your 9×13 baking pan and set aside.

In a large mixing bowl, add the oats, brown sugar, baking powder, cinnamon, and salt. Stir together until it’s well mixed.

Eggs, milk, vanilla, and melted butter are added to the dry ingredients.
Wet and dry ingredients are mixed together.

Next, add the eggs, milk, melted butter, and vanilla. Stir until the wet and dry ingredients are well combined.

Diced apples added to the bowl.
Apple cinnamon baked oatmeal batter all mixed together.

Then, fold in the diced apples.

Baked oatmeal batter is poured into a glass baking dish.

Pour the mixture into the baking dish. Bake at 350°F for 40-45 minutes until the center has set and the top has browned.

A baking dish of cinnamon apple baked oatmeal with a slice removed.

Substitutions

  • Milk – Milk can be substituted with water, half cream and half water, or an alternative milk such as almond milk or coconut milk.
  • Butter – I like the taste of butter the best, but vegetable oil also works well.
A slice of homemade apple cinnamon baked oatmeal on a white plate with fresh apples in the background.

Topping Ideas

This easy breakfast treat is yummy on its own, but to make it extra special, here are some fun topping ideas.

  • Drizzle of honey or maple syrup
  • A little cream or milk
  • A scoop of Greek yogurt or whipped cream
  • Chopped walnuts or pecans sprinkled over the top

Serve With:

  • Bacon or breakfast sausage – it’s a savory side that goes great with the sweet oatmeal.
  • Scrambled eggs – another quick breakfast recipe that helps to add protein and balance the sweetness.
  • Egg Muffins – like scrambled eggs, they’re a great way to balance out breakfast, and they are also easy to make ahead of time.

How To Store And Reheat

To store in the refrigerator, let the baked oatmeal fully cool, then cover it with plastic wrap and place it in your fridge. It will keep for up to a week.

For longer storage, you can freeze the whole pan or slices. Let the dish fully cool, then cover with foil and place it into the freezer. It will keep for up to 3 months.

You can also cut the oatmeal into squares and freeze it in freezer-safe containers or bags.

To reheat a pan of oatmeal, cover it with foil and warm it in your oven for 20 minutes or until heated through at 350°F.

To reheat individual servings, warm them for 5-10 minutes at 350°F or microwave them for 1 minute.

More Recipes With Apples And Oatmeal:

More Baked Oatmeal Recipes

FAQ

Yes! You can prepare and bake it ahead of time, then store it in the fridge for up to a week.

You can, but the texture will be softer and less chewy. For best results, stick with using rolled oats.

Any variety works, but firmer apples, such as Honeycrisp, Granny Smith, or Fuji, hold their shape well and have a great flavor. If you like softer apples, Macintosh is a great choice.

Yes! Substitute the butter with coconut oil and use your favorite non-dairy milk like almond, oat, or soy.

Yes, you can cut the brown sugar in half or replace it with maple syrup or honey.

A slice of homemade apple cinnamon baked oatmeal on a plate.

Apple Cinnamon Baked Oatmeal

This apple cinnamon baked oatmeal is a cozy, make-ahead breakfast loaded with warm spices and sweet apples. It's so easy to make, mix everything in one bowl, and it bakes into soft, lightly crisped squares. Perfect for busy mornings or weekend brunch. It's kid-approved, freezer-friendly, and full of fall flavor.
Prep Time 15 minutes
Cook Time 40 minutes
Total Time 55 minutes
Serving Size 12 servings

Ingredients

  • 6 cups rolled oats
  • 1 1/2 cups brown sugar
  • 4 teaspoons baking powder
  • 4 teaspoons ground cinnamon
  • 2 tsp salt
  • 4 eggs
  • 3 cups milk
  • 2/3 cup melted butter
  • 4 teaspoons vanilla
  • 2-3 large apples peeled, cored, and diced (4 cups)

Instructions

  • Preheat your oven to 350°F. Lightly grease your 9×13 baking pan and set aside.
  • In a large mixing bowl, add the oats, brown sugar, baking powder, cinnamon, and salt. Stir together until it’s well mixed.
  • Next, add the eggs, milk, melted butter, and vanilla. Stir until the wet and dry ingredients are well combined. Then, fold in the diced apples.
  • Pour the mixture into the baking dish. Bake at 350°F for 40-45 minutes until the center has set and the top has browned.

Nutrition

Serving: 1serving | Calories: 723kcal | Carbohydrates: 115g | Protein: 20g | Fat: 21g | Saturated Fat: 9g | Polyunsaturated Fat: 3g | Monounsaturated Fat: 6g | Trans Fat: 0.4g | Cholesterol: 89mg | Sodium: 669mg | Potassium: 617mg | Fiber: 13g | Sugar: 34g | Vitamin A: 512IU | Vitamin C: 1mg | Calcium: 258mg | Iron: 6mg

These values are from a nutritional database and automatically calculated, and should only be used as an approximation.

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