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Peanut Butter Banana Baked Oatmeal

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This peanut butter banana baked oatmeal is moist, fluffy, and incredibly delicious! Start your morning with a slice of this nutritious breakfast. It’s filled with wholesome, vegan, and gluten-free ingredients.

slice of peanut butter banana baked oatmeal on a white plate surrounded by rolled oats, a wooden fork, and creamy peanut butter

You may have tried my chocolate banana baked oatmeal, but today I’m bringing you peanut butter banana baked oatmeal. It’s like the older, less rebellious sister. You know what I mean? No? Just me?

This recipe is my new favorite breakfast. Ok, I think I declare something as my “new favorite” every week. But, I can say with certainty that – at this very moment – it’s my favorite. I don’t foresee this opinion changing any time soon. I ate this breakfast for the last week straight, and that says a lot for someone who isn’t a creature of habit!

So, what’s this baked oatmeal all about? Well, for starters, it’s vegan and gluten-free. No refined sugar is used in the recipe. The flavor is lightly sweet with hints of vanilla while the texture is fluffy and moist. The banana flavor is not too over powering and each bite contains creamy peanut butter.

Oh, and let’s not forget – it’s a great option for meal prep because you can store leftovers in the refrigerator for up to four days. Simply reheat a slice by popping it into the microwave for 30 seconds!

slice of peanut butter banana baked oatmeal topped with sliced bananas and peanut butter on a white plate

How to Make Peanut Butter Banana Baked Oatmeal

This recipe is very easy to create! All of the ingredients can be mixed together in just one bowl. Round of applause for the easy clean-up process, right? Let’s get started!

First, we’ll mash the ripe bananas. The recipe calls for 1.5 cups which is approximately 4 medium-sized bananas. I recommend measuring to get the exact amount.

Next, add creamy peanut butter, maple syrup, applesauce, melted coconut oil, vanilla, cinnamon, and salt. Mix the ingredients together. Add almond milk and mix together again until well combined. Finally, fold in the rolled oats and baking powder.

  • mashed banana inside a glass bowl
  • mashed banana, peanut butter, coconut sugar, maple syrup, and vanilla in a glass bowl
  • hand holding a white spatula mixing batter in a glass bowl
  • hand holding a metal measuring cup pouring rolled oats into a brown batter
  • hand holding a white spatula mixing oatmeal batter

It’s now time to assemble the batter and toppings. Pour the batter into a lightly oiled baking dish. Then, add your desired toppings. Bake at 375 degrees F for 40 minutes or until a toothpick comes out clean.

  • two hands holding a white square baking dish that contains oatmeal batter with bananas
  • two hands holding a white square baking dish that contains baked banana oatmeal

We’ve reached the finish line! After allowing the peanut butter banana baked oatmeal to cool, slice it into 12 squares and serve. It pairs great with a cold glass of almond milk. Also, feel free to add additional sliced bananas and peanut butter on top. Mmmmmmm.

hand holding a metal spatula lifting a slice of baked oatmeal out of a white baking dish

Kaylie’s Tips:

  • Use ripe bananas! You may be wondering how to tell if your bananas are ripe enough. The answer is simple; a ripe banana will have a yellow peel with small brown specks all over it. Ripe bananas are sweet and perfect for baked oatmeal, banana bread, and banana oatmeal cookies.
  • Got toppings? This peanut butter banana baked oatmeal is delicious all on its own, but I love tossing some additional banana slices, creamy peanut butter, and hemp seeds on top. Also try: berries, walnuts, pecans, chocolate chips, or this insanely delicious maple almond butter. Seriously – I ate a slice drizzled in maple almond butter for a week straight after making this recipe. Sooo good!
  • Rolled oats work best. I recommend sticking to rolled oats instead of trying to substitute quick oats.
  • Keep any leftovers stored in the refrigerator to maintain freshness. The leftovers should keep for 3-4 days. To reheat, warm in the microwave or oven at 350 degrees F.
slice of peanut butter banana baked oatmeal on a white plate surrounded by a bowl of peanut butter and a light grey linen napkin
square of baked oatmeal topped with bananas, peanut butter, and hemp seeds on a white plate

If you love this peanut butter banana baked oatmeal, you may also enjoy these recipes:

  • Peanut Butter Banana Oatmeal Cookies
  • Vegan Gluten-Free Banana Bread
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Peanut Butter Banana Baked Oatmeal

  • Author: purelykaylie
  • Prep Time: 10 minutes
  • Cook Time: 40 minutes
  • Total Time: 50 minutes
  • Yield: 12 slices 1x
  • Category: Breakfast
  • Method: Bake
  • Cuisine: Vegan, Gluten-free
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Description

This peanut butter banana baked oatmeal is moist, fluffy, and beyond delicious! Start your morning with a square of this nutritious, gluten-free breakfast. 


Scale

Ingredients

  • 1 + 1/2 cup mashed banana (~4 medium bananas)
  • 1/3 cup creamy peanut butter
  • 2 tbsp maple syrup
  • 2 tbsp unsweetened applesauce
  • 1 tbsp melted coconut oil*
  • 1 tsp vanilla extract
  • 1 tsp ground cinnamon
  • 1/2 tsp salt
  • 1 + 1/2 cup almond milk
  • 3 cups rolled oats
  • 2 tsp baking powder

Instructions

  1. Preheat oven to 375 degrees F and lightly oil an 8×8-inch baking dish.
  2. Combine mashed banana, creamy peanut butter, maple syrup, applesauce, melted coconut oil, vanilla extract, cinnamon, and salt in a large bowl. Mix ingredients together. Add almond milk and mix again. Then, add rolled oats and baking powder. Combine ingredients thoroughly. 
  3. Pour oatmeal batter into the baking dish. Spread batter evenly across the dish. Add sliced banana (or any desired toppings). 
  4. Bake for 40 minutes or until a toothpick comes out clean. Allow baked oatmeal to cool before slicing and serving. 

Notes

*Heat a spoonful of coconut oil in the microwave for 30 seconds to melt. Then, measure 1 tbsp and proceed with the recipe. 

Store leftovers in the refrigerator to maintain freshness. Oatmeal should keep for 3-4 days. 

Keywords: peanut butter banana baked oatmeal, banana baked oatmeal, peanut butter, baked oatmeal, oatmeal, vegan baked oatmeal, banana

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Welcome to the Purely Kaylie kitchen! I share plant-based recipes with simple, healthy ingredients. Whether you’re vegan or not, please take a look around. There’s something here for everyone to enjoy! About Kaylie →

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