Chocolate Peanut Butter Brownie Recipe

Homemade Chocolate Peanut Butter Brownies topped with chunky peanut butter & a chocolate marshmallow icing! Using simple ingredients like butter, cocoa powder, and sugar, along with the star ingredient, chunky peanut butter, these brownies are easy to whip up.

Prep Time10

Cook Time20

Chill Time1 15

Total Time1 45

Course: Brownies, Dessert

Cuisine: American

Keyword: Chocolate Peanut Butter Brownies

Servings: servings

Calories: 193kcal

Author: Jessica & Nellie

Ingredients

1 ½ cups butter divided
¾ cup cocoa powder divided
4 eggs
2 cups sugar
1 tsp vanilla extract
1 ½ cups flour
½ tsp salt

Toppings

18 oz jar chunky peanut butter
⅓ cup milk
10 large marshmallows
2 cups powdered sugar

Instructions

Prep: Preheat the oven to 350°F. Grease a 15x10 baking pan with butter or non-stick cooking spray.
Brownie batter: In a saucepan, melt 1 cup butter; stir in ½ cup cocoa & whisk until smooth. Remove the pan from the heat.
In mixing bowl, combine the eggs, sugar, and vanilla extract; beat the mixture for 1 minute. In a separate bowl, combine the flour and salt; gradually add the flour mixture to the egg mixture. Then beat in the cocoa mixture; mix well.
Pour the batter into the prepared baking pan and bake for 18-22 minutes or until a toothpick inserted near the center comes out clean. Place the pan on a wire rack to cool.
Peanut butter topping: Place peanut butter in a microwave-safe bowl & heat uncovered, at 50% power for 2 minutes, stirring once. Stir until the peanut butter is smooth, then spread it over the warm brownies. Place the pan in the refrigerator for 45 minutes or until peanut butter is set.
Marshmallow icing: Place the remaining ¼ cup cocoa powder in a heavy saucepan. Stir in the 1/3 cup milk until smooth; add the marshmallows and remaining 1/2 cup butter. Cook and whisk gently over medium heat until butter and marshmallows are melted and mixture is smooth. Remove from the heat and whisk in powdered sugar. Spread over peanut butter layer. Refrigerate for at least 30 minutes. Cut into squares, serve, and enjoy!

Notes

These peanut butter brownies will stay fresh for up to 4-5 days if stored in an airtight container at room temperature.

For longer storage, place the completely cooled brownies in an airtight container or freezer bag and freeze for up to 3 months. Thaw at room temperature before serving.

Nutrition