This soft, fluffy peanut butter baked oatmeal is the perfect healthy breakfast recipe! Made with simple ingredients, it’s great for meal prep and tastes like peanut butter cake. Enjoy this nutritious, refined sugar-free breakfast!
Easy peanut butter baked oatmeal recipe
Baked oatmeal is a staple in our household, and this peanut butter version takes it to the next level. While we have over 10 baked oatmeal recipes on our site, this one’s a personal favorite, especially if you’re a peanut butter fan like me. A close second is this single-serve protein chocolate chip baked oats recipe.
Its soft, moist, and fluffy texture resembles a warm and comforting peanut butter cake. Simply put, it’s irresistible! Despite my attempts to articulate its deliciousness, it’s truly something you must taste to believe – so don’t hesitate to try!
We make this peanut butter baked oatmeal recipe every week. It’s a family favorite and perfect for meal prep. Once baked, we cut it into squares for easy breakfasts or snacks all week long. Plus, any extras can be frozen for up to 3 months, ensuring a wholesome breakfast is always on hand.
Plus, it’s secretly healthy with no refined sugars. This recipe is made with all-natural peanut butter, banana, and maple syrup; it’s even vegan-friendly and naturally gluten-free. This guilt-free treat will keep you satisfied for hours. Let me know your thoughts on this recipe—leave a comment below with your feedback!
Why you’ll love this recipe:
- Peanut Butter Heaven: This recipe is for you if you love peanut butter!
- Nutritious & Filling: Packed with oats, banana, and peanut butter, this wholesome breakfast option provides energy and keeps you satisfied.
- Healthy: There are no refined sugars or random ingredients in this baked oats recipe.
- Easy Prep: Simple ingredients and instructions make it a breeze to whip up, even for beginner cooks.
- Customizable & Versatile: Add your favorite toppings or mix-ins for endless flavor variations. Enjoy it warm or cold, any time of day.
- Make-Ahead & Family-Friendly: Prepare in advance for quick meals and enjoy by the whole family, even kids.
- Try these protein chocolate chip baked oats or protein chocolate chip baked oats recipes next!
Ingredients needed
You only need eight simple ingredients to make this healthy peanut butter baked oatmeal! It’s easy to cook, healthy, protein-packed, and perfect for meal prepping. Here is a list of everything you need so you are prepared:
- Banana: Adds natural sweetness, moisture, and binding properties to the baked oatmeal.
- Peanut Butter: I reccomend using creamy, all-natural peanut butter without added sugars. It provides rich flavor, protein, and healthy fats while also contributing to the moist texture of the dish.
- Maple Syrup or Honey: Both are perfect refined sugar-free sweeteners.
- Milk: You can use oat, cow’s, or almond milk. It keeps the oats super moist.
- Egg: Acts as a binding agent to hold the ingredients together and adds some protein to the baked oatmeal.
- Vanilla Extract: Enhances the flavor.
- Rolled Oats: They are rich in fiber and nutrients, making them a healthy and filling choice. Texture-wise, I recommend using rolled oats, not quick oats. Don’t use steel-cut oats.
- Ground Cinnamon: Adds warmth and a hint of spice to complement the sweetness of the banana and peanut butter.
- Baking Powder: Helps the oatmeal rise, creating a light and fluffy texture.
Kitchen tools needed
Here is a quick list of all the kitchen tools you’ll need to make this gooey peanut butter baked oatmeal:
- Mixing bowl
- Whisk
- Measuring cups and spoons
- 9-inch square baking dish
- Oven
How to make peanut butter baked oatmeal
This peanut butter baked oats recipe is super easy to make. Here are detailed step-by-step instructions with pictures for visual reference so any level cook can make this recipe; just scroll to the bottom of this post for the full recipe and ingredient measurements.
Step 1:
First, preheat your oven to 350°F (175°C). Lightly grease a 9-inch square dish with cooking spray or avocado oil.
Step 2:
Combine the mashed banana, peanut butter, maple syrup, milk, egg (or omit for a vegan option), and vanilla extract in a large bowl. Whisk until thoroughly combined.
Step 3:
Stir in the rolled oats, cinnamon, baking powder, salt, and ground flaxseed (if not using an egg). Mix until all ingredients are well incorporated. TIP: all peanut butter brands are different, so ensure your batter is not too stiff. If you use a thicker peanut butter, you may need to add a dash more milk. Look at the reference picture below to compare.
Step 4:
Pour the mixture into the greased baking dish, spreading it evenly.
Step 5:
Bake for 35 to 45 minutes, until the top is golden brown and the center is set.
Step 6:
Allow the baked oatmeal to cool for 5 minutes before serving. Optionally, drizzle with extra peanut butter and garnish with banana slices. Enjoy your delicious peanut butter baked oatmeal!
Expert recipe tips:
- The Batter: This batter is “wetter” than typical baked oatmeal recipes. It’s super moist, fluffy, and soft when baked, so don’t be alarmed.
- Banana Ripeness: Ensure your banana is spotty and ripe for maximum sweetness and flavor in the baked oatmeal.
- Peanut Butter Consistency: Opt for an all-natural creamy, runny peanut butter for a smooth texture. If your peanut butter is thick, consider gently heating it to make it easier to mix.
- Customize Flavors: Experiment with add-ins like chocolate chips, chopped nuts, or dried fruit to add texture and flavor complexity.
- Make it Vegan: Instead of using an egg, substitute it with 1 tablespoon of ground flaxseed mixed with 3 tablespoons of water. Let the mixture sit for a few minutes until it thickens, then use it in place of the egg.
- Make Ahead: Prepare the batter the night before and refrigerate it overnight. This allows the flavors to meld and makes breakfast preparation a breeze in the morning.
- Double Batch: Consider doubling the recipe and freezing individual portions for quick and convenient breakfasts or snacks throughout the week.
Easy ingredient substitutions:
Here are some easy ingredient substitutions for the peanut butter baked oatmeal recipe. I only recommend swapping one or two ingredients, so the entire recipe doesn’t change.
- Banana: If you don’t have ripe bananas on hand, you can substitute with unsweetened applesauce or pumpkin puree for moisture and sweetness.
- Peanut Butter: Any other nut or seed butter, such as almond butter, cashew butter, or sunflower seed butter, can be used as a substitute for peanut butter. Make sure it is creamy and well-stirred.
- Maple Syrup or Honey: For a similar sweetness level, you can replace these sweeteners with alternatives like agave syrup, brown rice syrup, or date syrup.
- Almond Milk or Oat Milk: Any other milk alternative, such as soy milk, coconut milk, or cow’s milk, can be used depending on your dietary preferences and availability.
- Egg: For a vegan option, you can replace the egg with a flax egg (1 tablespoon ground flaxseed mixed with 3 tablespoons of water) or a chia egg (1 tablespoon chia seeds mixed with 3 tablespoons of water) to provide binding.
- Rolled Oats: Quick oats can be used instead of rolled oats in this recipe. However, they may have a slightly different texture compared to rolled oats.
What to serve with peanut butter baked oats:
There are many delicious options to serve with peanut butter baked oats. Here are a few ideas:
- Fresh fruit
- Nuts and seeds
- Yogurt
- Banana slices
- Dairy-free yogurt
- Maple syrup or honey
- Additional peanut butter
- Chocolate chips
- Jam or jelly
- Coconut flakes
Frequently Asked Questions
What is baked oatmeal?
Baked oatmeal is a breakfast casserole made with oats, milk, eggs, and flavorings. It’s like a soft, slightly cakey oatmeal that’s perfect for serving warm with your favorite toppings. It’s a comforting and customizable breakfast option.
Can I use quick oats for baked oatmeal?
You can use quick oats for baked oatmeal, but rolled oats are typically preferred for better texture and consistency. Rolled oats tend to hold their shape better during baking and provide a chewier texture, whereas quick oats may result in a softer and mushier final product.
Can I use crunchy peanut butter instead of creamy?
While creamy peanut butter is recommended for a smoother texture, you can use crunchy peanut butter if you prefer some added texture in your baked oatmeal.
How do I know when the baked oatmeal is done?
The baked oatmeal is done when the top is golden brown, and the center is set. You can also insert a toothpick into the center, and if it comes out clean, the oatmeal is ready.
Can I omit the egg or flaxseed for a vegan option?
Yes, you can omit the egg and use one tablespoon of ground flaxseed mixed with three tablespoons of water as a binder for a vegan option. This will still help bind the ingredients together while providing a similar texture to the baked oatmeal.
Can I make baked oatmeal ahead of time?
Yes, you can prepare the batter for the baked oatmeal ahead of time and store it covered in the refrigerator overnight. When ready to bake, pour the batter into the greased baking dish and bake according to the instructions.
Can you freeze baked oatmeal?
Yes, you can freeze baked oatmeal. Allow it to cool completely, then cut it into individual servings and wrap them tightly in plastic wrap or aluminum foil. Place the wrapped portions in a freezer-safe bag or container and freeze for up to 2-3 months. To reheat, thaw overnight in the refrigerator or microwave from frozen until heated through.
How to store and reheat peanut butter baked oatmeal:
Storing: Allow the baked oatmeal to cool completely after baking. Once cooled, transfer any leftovers to an airtight container. Make sure the container is sealed well to prevent moisture from getting in. Store the container in the refrigerator for up to 3-4 days.
Reheating: To reheat peanut butter baked oatmeal, place individual portions in the microwave on high for 1-2 minutes until heated through. Alternatively, reheat larger portions in the oven at 350°F (175°C) for 10-15 minutes, covered with foil to prevent drying out.
If you love this recipe, try these baked oatmeal recipes next!
- Protein Baked Oats
- Microwave Baked Oats
- Chocolate Baked Oats (single serve)
- Baked Oatmeal without Banana
- Air Fryer Baked Oats
- Pumpkin Spice Latte Baked Oatmeal
- Vegan Baked Oatmeal
Did you make this recipe?
If you make this recipe, be sure to comment and rate it down below. Also, don’t forget to tag me @healthfulblondie on Instagram and use the hashtag #healthfulblondie so I can see your delicious creation and share it with my followers!
Peanut Butter Baked Oatmeal
Ingredients
- 1 large spotty banana, mashed
- ½ cup creamy all-natural peanut butter, one that is runny
- 3 tbsp real maple syrup, or honey
- 1 ¾ cups of unsweetened almond milk or oat milk
- 1 large egg, or 1 tbsp ground flaxseed with 3 tbsp of warm water (for vegan option)
- 2 tsp vanilla extract
- 2 cups old-fashioned rolled oats, (200g)
- 1 tsp ground cinnamon
- 1 tsp baking powder
- ½ tsp salt
Instructions
- Preheat: Preheat your oven to 350°F (175°C). Lightly grease a 9-inch square dish with cooking spray or avocado oil.
- Mix Wet Ingredients: In a large bowl, combine the mashed banana, peanut butter, maple syrup, milk, egg (or omit for a vegan option), and vanilla extract. Whisk until fully combined.
- Add Dry Ingredients: Stir in the rolled oats, cinnamon, baking powder, salt, and ground flaxseed (if not using an egg). Mix until all ingredients are well incorporated. All peanut butter brands are different, so make sure your batter is not too stiff. If you use a thicker peanut butter, you may need to add a dash more milk. Look at the reference picture below to compare.
- Pour: Pour the mixture into the greased baking dish, spreading it evenly.
- Bake: Bake for 35 to 45 minutes, until the top is golden brown and the center is set.
- Serve: Allow the baked oatmeal to cool for 5 minutes before serving. Optionally, drizzle with extra peanut butter and garnish with banana slices. Enjoy your delicious peanut butter baked oatmeal!
Notes
Nutrition
I only recommend products I love and use myself. In full disclosure, I may receive a small compensation for purchasing a product I recommend. Thank you for supporting Healthful Blondie!
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