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Peanut Butter Cookie Baked Oatmeal: rich in fiber, protein, and healthy fats to keep you full + fueled! Topped with a peanut butter “frosting” and fresh raspberries, these baked oats for one are a breakfast win. 
This breakfast is 100% conducive to a rushed morning. Just mix all ingredients, pour in a ramekin, place in the oven and carry on with morning to-dos while it bakes. Once your kitchen starts smelling like peanut butter cookies, you’ll know it’s go time.
I love experimenting with different add-ins for baked oatmeal. Much like my Chai Spiced Baked Oatmeal, the combination of different spices, fruit, and nuts are endless.
To really round out the “cookie” experience in these oats, I top them with a peanut butter “frosting” and fresh berries. Alternatively, you can add a dollop of Greek yogurt, banana slices, and/or drizzle of maple syrup.
Either way, these baked oats for one really lend the “dessert for breakfast” experience. Which is how I wish to start every day!
How to Make Peanut Butter Baked Oatmeal
This is the kind of recipe that you’ll fall asleep feeling excited about eating the next day.
For sweetness, I add just a touch of maple syrup to the batter. As the recipe is written, this baked oatmeal recipe isn’t super sweet, which is just how I like it. If you’d like your oats sweeter, you can add a bit more maple syrup to the recipe or simply drizzle some on at the end.
The Ingredients
- Oats: An excellent source of whole grains and fiber, oats make for a satisfying, satiating breakfast. I do not suggest using quick oats or steel-cut oats for this recipe.
- Egg: Not only does the egg add protein, but it also acts as the binder for these oats. If making the recipe vegan, you can use a flax egg instead.
- Peanut Butter: Look for a natural creamy peanut butter that only contains peanuts + salt.
- Milk: Use any milk you prefer in this recipe. I prefer an unsweetened plant milk, such as cashew or almond. However, 2% or whole cows milk also works great.
- Maple Syrup: A little maple syrup goes into both the batter and the frosting. If you prefer your oats sweeter, feel free to drizzle a little extra over the oats once they’re baked.
- Vanilla: For the real peanut butter cookie experience, vanilla extract is a must.
- Optional Add-Ins: Add extra protein to this peanut butter baked oatmeal by adding 1 to 2 Tbsp. of collagen powder or your protein powder. You can also add powdered peanut butter for extra PB flavor.
The Directions
Step 1. Blend Ingredients
Preheat oven to 350ºF.
In a blender or nutribullet, combine oats, milk, egg, peanut butter, maple syrup, vanilla, and a pinch of sea salt. Pulse a few times until ingredients are combined, but there are still some chunks of oats. (The batter should not be totally smooth.)
Step 2: Bake Oats
Pour batter into a greased 6-oz. ramekin or large mug. Carefully place in the oven and bake for 25 to 30 minutes, until the edges are set and center is slightly giggly. Remove from oven and let sit for 5 minutes.
Step 3: Top with Peanut Butter Frosting
Meanwhile, combine 1 Tbsp. peanut butter, 2 tsp. milk, and 1 tsp. maple syrup in a small bowl; mix until smooth. Gently spoon frosting over baked oats, and garnish with fresh berries or banana slices. 
Are Baked Oats Good for You?
Thanks to fiber-filled whole-grain oats, protein-rich eggs (which act as a binder), and healthy fats from nut butter, baked oatmeal is ultra filling and nutritious.
To make baked oatmeal even more satiating, add a scoop of collagen peptides or your favorite protein powder.
How Long Does Baked Oatmeal Keep?
Baked oatmeal will last up to 3 days refrigerated. To reheat, simply nook it in the microwave and add your toppings of choice. You can also enjoy baked oatmeal chilled.
More Healthy Oatmeal Recipes to Try
Chai Spiced Baked Oatmeal with Pecan Crumble
Slow Cooker Apple Pie Steel Cut Oats
Chocolate Peanut Butter Overnight Oats
Give this recipe a try for a nutritious, satisfying breakfast to tackle weekday mornings. And be sure to snap a pic and tag #dishingouthealth on Instagram so I can see your beautiful creations. Also, follow along on Facebook and Pinterest for the latest recipe updates!
Peanut Butter Cookie Baked Oatmeal for One
Equipment
- Blender or Nutribullet
- 6-oz. ramekin
Ingredients
- 1/2 cup old-fashioned rolled oats
- 1/2 cup milk of choice (I use unsweetened almond milk)
- 1 egg (sub flax egg if making vegan)
- 1 Tbsp. natural creamy peanut butter
- 1 Tbsp. maple syrup
- 1/2 tsp. vanilla extract
- Pinch sea salt
- Optional add-ins: 2 Tbsp. collagen peptides, protein powder of choice, or powdered peanut butter
- Fresh berries or sliced banana for garnish
Peanut Butter "Frosting"
- 1 Tbsp. natural creamy peanut butter
- 2 tsp. milk of choice
- 1 tsp. maple syrup
Instructions
- Preheat oven to 350ºF.In a blender or nutribullet, combine oats, milk, egg, peanut butter, maple syrup, vanilla, a pinch of sea salt, and any optional add-ins (collagen, protein powder, or powdered peanut butter). Pulse a few times until ingredients are well-combined, but there are still some chunks of oats. (The batter should not be totally smooth.)Pour batter into a greased 6-oz. ramekin or large mug. Carefully place in the oven and bake for 25 to 30 minutes, until the edges are set and center is slightly giggly. Remove from oven and let sit for 5 minutes.
- Meanwhile, prepare Peanut Butter Frosting by combining 1 Tbsp. peanut butter, 2 tsp. milk, and 1 tsp. maple syrup in a small bowl; mix until smooth.Gently spoon frosting over baked oats, and garnish with fresh berries or banana slices.
Notes
Nutrition
I calculate these values by hand to ensure accuracy, however expect up to a 10% variable depending on food brands.
Wow, Jamie! This is such a great meal! I absolutely love it. It’s so yummy and filling, I love the protein and we can use up all our eggs still without doing an egg breakfast! Love. And Braelyn loves it too! Totally win! Thanks, lovely!
Just found your website and made this baked oatmeal for my breakfast this morning. It was SO good!! Very filling! I topped it with banana and berries and some plain yogurt (and some chocolate chips). It was delicious! Plan on making it tomorrow morning.
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