Peanut Butter Brownie Baked Oatmeal
Indulging in a warm bowl of Peanut Butter Brownie Baked Oatmeal is truly one of life’s simple joys. It’s a delightful fusion of textures and flavors that transforms breakfast into a rich dessert experience. Just imagine digging into soft, chewy oatmeal infused with the velvety goodness of peanut butter and deep chocolate flavor. There’s something comforting about this dish that feels like a warm hug from a dear friend.
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I first discovered this recipe on a cozy Sunday morning, craving something sweet yet wholesome. I found myself with a stash of overripe bananas begging to be used, and the idea of combining them with chocolate and peanut butter sounded irresistible. The result was nothing short of phenomenal—rich enough to satisfy the most decadent cravings while still being packed with wholesome oats and fruit. I promise, once you try Peanut Butter Brownie Baked Oatmeal, you’ll be tempted to whip it up again and again.
Why You’ll Love This Recipe
- Simple & Quick: This dish comes together in just about 10 minutes and then bakes for a total of 60 minutes, making it perfect for busy mornings or lazy weekends.
- Irresistible Flavor: It offers a luscious peanut butter and chocolate combo that feels like indulgence in every bite, yet is wholesome at heart.
- Eye-Catching Appeal: A sprinkle of mini vegan chocolate chips on top adds a charming touch, making it visually scrumptious.
- Flexible Serving: Whether it’s breakfast, a snack, or even dessert, this recipe fits seamlessly into any meal.
- Diet-Friendly Options: With no eggs or dairy used, this recipe is vegan-friendly and can easily cater to different dietary needs.

Ingredients You’ll Need
- 2 2/3 cups over ripe mashed bananas: Provides natural sweetness and moisture. For best results, use extremely ripe bananas that are easy to mash.
- 1/3 cup creamy peanut butter: Adds rich flavor and creaminess. Feel free to substitute it with almond or sunflower seed butter if needed.
- 1 cup chocolate almond milk: This helps to blend everything beautifully and enhances the chocolatey goodness. You can also use any non-dairy milk of your choice.
- 1/4 cup maple syrup: A lovely natural sweetener that complements the other flavors; honey can work if you’re not vegan.
- 2 1/2 teaspoons vanilla extract: This adds depth to the flavor profile. Always opt for pure vanilla extract for the best taste.
- 3 cups rolled oats: The hearty base that gives this dish its texture. Quick oats can be substituted, but avoid instant oats as they may become too mushy.
- 1/2 cup cocoa powder: Crucial for achieving that rich brownie flavor. Choose unsweetened cocoa powder for optimal results.
- mini vegan chocolate chips: These make the finished dish even more decadent. You can leave them out or use dark chocolate chips based on preference.
How to Make Peanut Butter Brownie Baked Oatmeal
Preheat Oven: Begin by preheating your oven to 350 degrees Fahrenheit. While the oven warms up, grab a 9 x 13 inch baking pan and spray it with non-stick spray to ensure easy serving later on.
Mash Bananas: In a large bowl, mash enough over ripe bananas to yield 2 2/3 cups. The runnier the mash, the better your oatmeal mixture will incorporate. Use a fork or potato masher for this task; you want the consistency to be smooth without any large chunks.
Combine Ingredients: Next, stir the mashed bananas together with 1/3 cup creamy peanut butter, 1 cup of chocolate almond milk, 1/4 cup pure maple syrup, and 2 1/2 teaspoons vanilla extract. Mix well until all the ingredients are beautifully blended, and the mixture appears creamy.
Add Oats & Cocoa: Now, sprinkle in the 3 cups of rolled oats and 1/2 cup cocoa powder. Stir again until everything is thoroughly combined. The cocoa powder should be fully mixed in, giving the mixture a lovely chocolate color.
Spread into Pan: Carefully pour the thick mixture into your prepared pan, using a spatula to spread it evenly. This ensures that every bite baked evenly and remains soft and chewy.
Sprinkle Chips: Then, generously sprinkle with mini vegan chocolate chips on top, allowing some to sink in. This little addition will give you chocolatey bursts in each serving.
Bake: Place the pan in your preheated oven and bake for 30 minutes. After that, turn off the oven but let the squares sit inside for an additional 20 minutes. This helps them set perfectly, so they hold together when you cut them.
Cool and Serve: Once the time is up, remove your baked oatmeal from the oven and allow it to cool. If you’re feeling indulgent, you might want to drizzle some melted peanut butter on top before serving!

Storing & Reheating
Store the Peanut Butter Brownie Baked Oatmeal at room temperature in an airtight container for up to 3 days. If you have leftovers, transferring them to the fridge will keep them fresh for about a week. For longer storage, freeze individual portions in freezer-safe containers for up to 3 months. To reheat, pop it in the microwave for about 30 seconds to 1 minute, keeping an eye on it to make sure it’s heated through. The texture may change slightly after freezing, but a quick zap in the microwave often brings it back to life!
Chef’s Helpful Tips
- Ensure your over ripe bananas are really soft; they should easily mash. This adds natural sweetness and moisture.
- Use rolled oats instead of instant oats to maintain the chewy texture. Instant oats may lead to a mushy result.
- If you’re a chocolate lover, consider adding extra chocolate chips both inside the mixture and on top for added richness.
- For a fun twist, mix in some chopped nuts or fruit to give your baked oatmeal an extra dimension.
- If you prefer a sweeter dish, feel free to increase the maple syrup by a tablespoon or two to suit your taste.
A lovely blend of wholesome oats, decadent peanut butter, and rich chocolate makes this recipe truly special. Feel free to tweak it to your liking, whether that means adding extra chocolate chips or perhaps a handful of nuts for crunch. Peanut Butter Brownie Baked Oatmeal is a staple you’ll find yourself returning to often, and I can’t wait to hear how you enjoy it!
Recipe FAQs
Can I make this recipe gluten-free?
Absolutely! Simply use gluten-free rolled oats, which are readily available in most grocery stores. This way, you’ll have a delicious and completely gluten-free Peanut Butter Brownie Baked Oatmeal!
How do I know when the oatmeal is done baking?
Your baked oatmeal should be set at the edges but still slightly soft in the middle when you first remove it from the oven. After the additional 20 minutes of resting with the oven off, it should firm up nicely. If you insert a toothpick into the center, it should come out with just a few moist crumbs.
Can I make this in advance?
Yes! It’s a fantastic make-ahead recipe. You can prepare the oatmeal mixture the night before, store it in the fridge, and simply bake it in the morning. Or bake it and enjoy the leftovers throughout the week!
What can I use instead of peanut butter?
You can easily substitute it with any nut or seed butter, such as almond, cashew, or sunflower seed butter. Each will impart different flavor notes while keeping the oatmeal creamy.
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📖 Recipe Card

Peanut Butter Brownie Baked Oatmeal
- Prep Time: N/A
- Cook Time: 60 minutes
- Total Time: 0 hours
- Yield: 12 servings 1x
- Category: Breakfast
- Method: Baking
- Cuisine: American
Description
This Peanut Butter Brownie Baked Oatmeal is a delightful blend of ripe bananas, creamy peanut butter, and rich cocoa powder. It’s an easy-to-make, healthy dessert or breakfast option that will satisfy your sweet cravings. Whether you’re enjoying it for breakfast or as a comforting dessert, this oatmeal is bound to impress!
Ingredients
- 2 2/3 cups over ripe mashed bananas
- 1/3 cup creamy peanut butter
- 1 cup chocolate almond milk
- 1/4 cup maple syrup
- 2 1/2 tsp vanilla extract
- 3 cups rolled oats
- 1/2 cup cocoa powder
- mini-vegan chocolate chips
Instructions
- Preheat the oven to 350 degrees and prepare a 9 x 13 pan with non-stick spray.
- Mash enough overripe bananas to yield 2 2/3 cups.
- In a bowl, combine the mashed bananas, creamy peanut butter, chocolate almond milk, maple syrup, and vanilla extract.
- Mix the ingredients thoroughly until well combined.
- Stir in the rolled oats and cocoa powder until evenly mixed.
- Pour the mixture into the prepared pan and spread it evenly.
- Sprinkle with mini vegan chocolate chips to your liking.
- Bake for 30 minutes. After 30 minutes, turn off the oven and leave the dish in the oven for an additional 20 minutes to set.
- Once cooled, optionally garnish with a melted drizzle of creamy peanut butter.
Notes
Use overripe bananas for better sweetness and flavor.
Adjust the amount of chocolate chips based on your preference.
This dish can be served warm or chilled.
Nutrition
- Serving Size: 1 piece
- Calories: 150
- Sugar: 5g
- Sodium: 150mg
- Fat: 6g
- Saturated Fat: 1.5g
- Unsaturated Fat: 4g
- Trans Fat: 0g
- Carbohydrates: 23g
- Fiber: 3g
- Protein: 4g
- Cholesterol: 0mg
