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Peanut Butter Brownie Baked Oatmeal
4.9 from 74 votes

Peanut Butter Brownie Baked Oatmeal

Peanut Butter Brownie Baked Oatmeal combines ripe mashed bananas, natural peanut butter, cocoa powder, and rolled oats to create a warm, chocolatey breakfast casserole. Baked with a swirl of extra peanut butter on top, it offers a moist texture with a balance of sweetness and nutty taste, enhanced by cinnamon and vanilla. This makes for a comforting and filling baked oatmeal option that can be served warm or reheated.

Prep Time
10 mins
Cook Time
45 mins
Total Time
55 mins
Servings: 6
Calories: 384 kcal
Course: Breakfast, Brunch
Cuisine: American

Ingredients

  • 1.5 cups banana $0.68, mashed, ripe, about 3 medium bananas
  • 1 large egg $0.27
  • 1/4 cup peanut butter $0.31, natural
  • 1/4 cup brown sugar $0.04
  • 1 tsp vanilla extract $0.28
  • 1/2 tsp salt $0.02
  • 1 tsp baking powder $0.06
  • 1/2 tsp cinnamon $0.05
  • 1/3 cup cocoa powder $0.29, unsweetened
  • 2 cups milk $1.12, whole
  • 3 cups rolled oats $0.50, old-fashioned
  • 2 Tbsp peanut butter $0.15, natural, for topping

Instructions

    Cup of Yum
  1. Preheat the oven to 375ºF.
  2. Mash the bananas well, then place them in a large mixing bowl along with the egg, peanut butter, brown sugar, vanilla, salt, baking powder, cinnamon, and cocoa powder. Whisk until the mixture is mostly smooth (there may be small pieces of banana).
  3. Add the milk to the chocolate banana mixture, and then whisk until smooth again. Add the dry rolled oats and then stir until combined.
  4. Pour the oat mixture into a 2-3 quart casserole dish coated with non-stick spray. Drizzle the remaining 2 Tbsp peanut butter over the oats and drag a knife through to create swirls. If needed, warm the peanut butter slightly to make it runny enough to drizzle over the oats.
  5. Bake the oats in the preheated oven for 45 minutes. Serve warm, or refrigerate until ready to eat. 

Notes

  • Use old-fashioned rolled oats for the best texture; avoid steel-cut or quick oats in this recipe.
  • Swirling additional peanut butter on top before baking adds intensity and visually appealing topping.
  • Store leftovers in the refrigerator and reheat before serving for a warm breakfast.

Nutrition Information

Serving 1Serving Calories 384kcal (19%) Carbohydrates 57.28g (19%) Protein 13.25g (27%) Fat 14.3g (22%) Sodium 450.82mg (19%) Fiber 8.92g (36%)

Nutrition Facts

Serving: 6 Serving

Amount Per Serving

Calories 384

% Daily Value*

Serving 1Serving
Calories 384kcal 19%
Carbohydrates 57.28g 19%
Protein 13.25g 27%
Fat 14.3g 22%
Sodium 450.82mg 19%
Fiber 8.92g 36%

* Percent Daily Values are based on a 2,000 calorie diet.