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    Home » Breakfast & Brunch

    Apple Cinnamon Baked Oatmeal (Gluten-Free)

    Published: Sep 30, 2025 by Robin Brookshire · This post may contain affiliate links. Read our disclosure policy.

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    This apple cinnamon baked oatmeal is easy to make, gluten-free and dairy-free, and absolutely delicious. Bake it once and enjoy it throughout the week for simple, cozy breakfasts. With the warm flavors of cinnamon and apples baked right in, this would also be lovely served for brunch. For more baked oatmeal recipes, be sure to try my Blueberry Baked Oatmeal and Peach Baked Oatmeal.

    An apple cinnamon baked oatmeal casserole with a serving spoon lifting up a serving.

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    • How to make apple cinnamon baked oatmeal
    • How to store
    • More gluten-free breakfast recipes you’ll enjoy
    • Apple Cinnamon Baked Oatmeal

    How to make apple cinnamon baked oatmeal

    Mixing the ingredients for apple baked oatmeal in a glass mixing bowl.

    Preheat oven to 350°F. Grease a 9×13-inch baking dish.

    Place all ingredients, except the apples, in a medium-sized mixing bowl. Mix well.

    Stir in the diced apples until well combined.

    Baked oatmeal batter in a glass casserole dish to be baked.
    Freshly baked apple baked oatmeal.

    Pour the mixture into the prepared pan and smooth it out evenly.

    Bake for 30 minutes.

    How to store

    Apple baked oatmeal can be stored covered in the refrigerator for 4-5 days. To freeze: Freeze in single-serving sizes so you can easily pull out a serving when you need it. Let it thaw overnight in the refrigerator, then reheat it in a pan with a little bit of water over low heat or in the microwave.

    A serving of baked apple oatmeal.

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    A serving of baked apple oatmeal in a bowl.

    Apple Cinnamon Baked Oatmeal

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    • Author: Robin Brookshire
    • Prep Time: 10 minutes
    • Cook Time: 30 minutes
    • Total Time: 40 minutes
    • Yield: 10 servings 1x
    • Category: Breakfast
    • Method: Oven
    • Diet: Gluten Free
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    Description

    Bake once for easy breakfasts all week or serve as a cozy weekend brunch.


    Ingredients

    Scale
    • 3 cups gluten-free oatmeal*
    • 1 cup almond or cashew milk, unsweetened
    • 1/2 cup sugar or maple syrup
    • 1/2 cup expeller-pressed coconut oil or refined coconut oil, melted
    • 2 large eggs
    • 2 teaspoons baking powder
    • 1 teaspoon vanilla extract
    • 1 teaspoon cinnamon
    • 1 teaspoon sea salt
    • Optional: 2-4 tablespoons collagen peptides**
    • 2 cups diced apples, small dice***


    Instructions

    1. Preheat oven to 350°F. Grease a 9×13-inch baking dish.
    2. Place all ingredients, except the apples, in a medium-sized mixing bowl. Mix well.
    3. Stir in the diced apples until well combined.
    4. Pour the mixture into the prepared pan and smooth it out evenly.
    5. Bake for 30 minutes.

    Notes

    *Gluten-Free Oats: I use gluten-free, sprouted rolled oats from One Degree Organic Foods, available at Costco, Azure Standard, or Amazon.

    **Optional: Adding collagen peptides will add protein to the dish. Use your favorite collagen peptides or use Vital Proteins. 

    ***Apples: Two apples, diced small, should make about 2 cups. I used Gala apples.

    Apple baked oatmeal can be stored covered in the refrigerator for 4-5 days.

    To freeze: Freeze in single-serving sizes so you can easily pull out a serving when you need it. Let it thaw overnight in the refrigerator, then reheat it in a pan with a little bit of water over low heat or in the microwave.

    Nutrition

    • Serving Size: 1 serving
    • Calories: 283
    • Sugar: 12.2 g
    • Sodium: 192.8 mg
    • Fat: 12.1 g
    • Carbohydrates: 34.4 g
    • Protein: 5 g
    • Cholesterol: 37.2 mg

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    Filed Under: Breakfast & Brunch

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    Hi there! I’m Robin and I’m here to give you easy, delicious, and reliable gluten-free and dairy-free recipes! Let’s get started!

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