Chocolate Banana Baked Oatmeal with Peanut Butter Swirl

This chocolate banana baked oatmeal (with peanut butter) tastes indulgent like dessert but is actually a wholesome, fiber-rich breakfast ideal for meal prep and busy mornings.

Completed Chocolate Banana Baked Oatmeal (with peanut butter) in baking dish.

Why You’ll Love This Recipe

If you enjoy baked oats or chocolate-forward breakfasts, this peanut butter chocolate banana baked oatmeal brings together familiar flavors into a comforting, nutritious dish. It’s rich and creamy with a slightly gooey interior, firm edges, and a lightly crisp top. The bake slices neatly for serving, reheats well, and stores easily for breakfasts throughout the week.

Beyond flavor, the recipe is simple and pantry-friendly. Rolled oats provide fiber and complex carbohydrates, bananas contribute natural sweetness and potassium, and peanut butter adds healthy fats and protein. It’s a balanced option that can satisfy a morning sweet tooth while keeping you fuller longer.

This version is vegan-friendly and adaptable — you can tweak texture, sweetness, and add-ins to suit dietary needs and taste preferences.

The Ingredients and Substitutions

Refer to the ingredient list in the recipe card below for exact amounts. Key ingredients include ripe bananas, unsweetened plant-based milk, rolled oats, cocoa powder, a small amount of brown sugar, baking powder, spices, peanut butter, and optional vegan chocolate chips. Substitutions and notes:

  • Milk: Any unsweetened plant milk works — almond, oat, soy, or cashew. Use a plant milk with a neutral flavor for a more traditional oatmeal taste.
  • Sweetener: Brown sugar can be swapped for coconut sugar, maple syrup, or another sweetener. If using liquid sweeteners, reduce the plant milk slightly.
  • Peanut butter: Almond butter, sunflower seed butter, or another nut/seed butter can be used for allergy-friendly alternatives.
  • Oats: Old-fashioned rolled oats give the best texture. For a softer, more cake-like result, blend the oats into a flour before mixing.
Ingredients for Chocolate Banana Baked Oatmeal (with peanut butter) measured out on a white surface.

Recipe Variations

You can customize the baked oats to suit different tastes and nutritional goals. Try one of these simple variations:

  • Instant coffee: Add 1 teaspoon instant coffee granules to enhance the chocolate flavor with a rich depth.
  • Fresh or frozen berries: Fold in raspberries, blueberries, or strawberries for a fruity contrast and extra antioxidants.
  • Hidden vegetables: Stir in ½ cup finely shredded zucchini — it melts into the batter and boosts nutrients without changing the flavor.
  • Extra protein: Add 1–2 tablespoons chia seeds or hemp seeds for more protein and omega-3s, or substitute some cocoa with a vegan protein powder to increase protein content.
  • Peanut butter swirl: For a different texture, swirl peanut butter into the batter before baking rather than drizzling after baking.

How to Make Chocolate Peanut Butter Baked Oatmeal

Process shot showing mashing bananas.
Process shot showing mixing ingredients in a bowl.

Step 1: Preheat the oven to 375°F (190°C). Lightly grease or line an 8-inch (20 cm) square baking dish. In a large bowl, mash the ripe bananas until mostly smooth.

Step 2: Stir in the plant-based milk, brown sugar, and vanilla until combined.

Process shot showing mixing ingredients in a bowl.
Process shot showing ingredients added to baking dish.

Step 3: Add the oats, cocoa powder, baking powder, cinnamon, and salt. Mix until everything is evenly incorporated. Fold in vegan chocolate chips if desired.

Step 4: Transfer the mixture to the prepared pan and spread it evenly. Bake for about 35 minutes, or until the center is set and the top is slightly firm.

Completed Chocolate Banana Baked Oatmeal (with peanut butter) in baking dish.

Step 5: Warm the peanut butter briefly until pourable, then drizzle it over the hot baked oatmeal. Let the dish cool for 5–10 minutes before slicing to allow it to set. Serve warm or at room temperature.

For a firmer, swirl-like top, add the peanut butter as a swirl before baking. For a blended, cake-like texture, pulse the oats into flour before combining the wet and dry ingredients.

FAQs

Can I make individual portions?

Yes. Divide the mixture among greased ramekins or a lined muffin tin and reduce the bake time to about 20–25 minutes, depending on size.

Do I have to use cocoa powder?

No. Omitting cocoa yields a banana-peanut butter baked oatmeal. You can add vegan chocolate chips instead for chocolate notes without cocoa powder.

Why are my baked oats rubbery?

Overbaking commonly causes a rubbery texture. Also ensure there is enough moisture and fat in the recipe; reducing liquid too much can make the bake dense and rubbery.

Pro Recipe Tips

  • Adjust consistency: More plant milk makes the bake softer and looser. Use slightly less for a firm, sliceable result.
  • Cake-like texture: Blend the oats to oat flour for a fluffier, more cake-like baked oat.
  • Individual servings: For single servings, use ramekins or muffin tins and bake for 15–25 minutes depending on size.
  • Rest before slicing: Letting the bake cool for a few minutes helps it set and makes slicing neater.
Completed Chocolate Banana Baked Oatmeal (with peanut butter) on a plate.

Serving Suggestion

Serve warm or chilled. Popular accompaniments include:

  • Vegan whipped cream or a dollop of plant-based yogurt
  • Extra peanut butter or a scoop of dairy-free ice cream for an indulgent treat
  • Fresh berries or sliced banana
  • A sprinkle of chopped peanuts or flaky sea salt for texture and contrast

Storage Instructions

Fridge: Store tightly covered or in an airtight container for 4–5 days.

Freeze: Freeze whole or in portions in airtight, freezer-safe containers for up to 3 months. Thaw in the refrigerator overnight before reheating.

Reheat: Microwave individual slices for 40–60 seconds (longer from frozen) or reheat a whole dish wrapped in foil at 350°F (177°C) until warm, about 15–20 minutes. Add a splash of plant milk when reheating if you prefer a looser texture.

Completed Chocolate Banana Baked Oatmeal (with peanut butter) in a storage container.

More Vegan Oat Recipes

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If you try this chocolate banana baked oatmeal (with peanut butter), please leave a star rating and share your feedback in the comments. Your notes help others and inspire recipe improvements.

Chocolate Banana Baked Oatmeal (with peanut butter)

Prep: 10 mins
Cook: 35 mins
Total: 45 mins
Servings: 6 servings
Completed Chocolate Banana Baked Oatmeal (with peanut butter) on a plate.
This cozy chocolate banana baked oatmeal with peanut butter tastes like dessert but functions as a nourishing, make-ahead breakfast option.

Ingredients

  • 2 ripe bananas
  • 2 cups unsweetened plant-based milk
  • ¼ cup brown sugar
  • 1 teaspoon vanilla extract
  • 4 cups old-fashioned rolled oats
  • ¼ cup cocoa powder
  • 1 teaspoon baking powder
  • ½ teaspoon ground cinnamon
  • ¼ teaspoon salt
  • ½ cup vegan chocolate chips (optional)
  • cup creamy peanut butter

Instructions

  • Preheat the oven to 375°F (190°C). Lightly grease an 8×8 baking dish or line it with parchment paper.
  • In a large bowl, mash the bananas until mostly smooth.
  • Add the plant-based milk, brown sugar, and vanilla. Stir until combined.
  • Add the oats, cocoa powder, baking powder, cinnamon, and salt. Mix until evenly incorporated.
  • Fold in vegan chocolate chips if using.
  • Pour the mixture into the prepared baking dish and spread evenly.
  • Bake for 35 minutes, or until set in the center.
  • While the oats bake, gently warm the peanut butter until pourable.
  • Remove the baked oatmeal and drizzle with warm peanut butter. Let cool for 5–10 minutes before serving.

Notes

  • Consistency: More plant milk = softer oats. Slightly less milk = firmer, sliceable oats. Avoid too little liquid to prevent rubberiness.
  • Blended version: Blend oats into a flour before combining to create a cake-like texture.
  • Individual portions: Use ramekins or a muffin tin and reduce bake time to 15–25 minutes depending on size.
  • Resting: A short rest after baking helps the mixture set and makes serving easier.

Nutrition

Calories: 482kcal
Carbohydrates: 72 g
Protein: 15 g
Fat: 18 g
Fiber: 10 g

Additional Info

Author: Toni Okamoto
Course: Breakfast, Dessert
Cuisine: American
Method: Oven
Diet: Vegan