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    TaraTeaspoon » Baking + Desserts

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    Published: · Modified: Jun 15, 2021 by

    Peanut Butter Brownie Cake

    Jump to Recipe Pin Recipe
    Peanut Butter Brownie Cake Pinterest pin in yellow
    Peanut Butter Brownie Dessert Pinterest Pin

    Combining the chocolaty goodness of brownies with peanut butter fudge makes this dessert practically irresistible.


    Peanut Butter Brownie Cake, or Can-I-Get-A-Boyfriend Peanut Butter Brownie Cake as I like to call it, takes a simple chocolate brownie cake recipe and elevates it with two layers of cream cheese and peanut butter frosting.

    Peanut Butter Brownie Cake sitting on a table at a party
    Jump to:
    • Peanut Butter Plus Classic Chocolate Brownie Mix
    • How To Make Brownie Cake:
    • How to make Fluffy Peanut Butter Frosting:
    • Serving Peanut Butter Brownie Cake:
    • Peanut Butter Brownie Cake

    Peanut Butter Plus Classic Chocolate Brownie Mix

    This recipe was created for my sweet friend Camas. For her birthday, she requested peanut butter brownies. I have a peanut butter icing for brownies recipe already, but, since I love my friend and I love to embellish simple recipes, I decided to create this two-tier chocolate brownie cake with a whipped peanut butter frosting.

    I won Camas’ approval, as well as that of family, friends and even strangers. So, I figure that if I serve this cake to a cute guy, his mind will be blown by its magic and will subsequently want to be my boyfriend. I suggest the same plan for anyone in the boyfriend market.

    This recipe is the perfect marriage of peanut butter brownies and chocolate brownie cake.

    For more indulgent desserts you can make with brownie mix, try my amazing Think Outside of the Box Brownies.

    This take on a peanut butter brownie is a great go-to because it’s decadent and so simple to make.

    Peanut Butter Brownie Cake with peanut butter frosting

    How To Make Brownie Cake:

    For the cake, use any chocolate brownie mix, separate the batter in two pans and bake until just cooked through. After you've let the pans cool, assemble the brownie cakes like a layer cake. Pipe the peanut butter fudge frosting on both tiers and sprinkle with chopped peanuts.

    You can also make homemade brownies if you'd rather. You're brownie rounds will be thicker if you use 7-inch round pans. I used 8-inch round pans in the images.

    How to make Fluffy Peanut Butter Frosting:

    • In a mixing bowl, beat peanut butter, butter, cream cheese and salt
    • Mix in confectioners' sugar (mixture will be stiff).
    • Add milk and beat until smooth.

    If you don't like peanuts, or are allergic to them, you can make this chocolate brownie cake with my Fluffy Vanilla Frosting or Whipped Chocolate Ganache Frosting.

    Serving Peanut Butter Brownie Cake:

    This is delicious with my homemade Eggless Vanilla Ice Cream recipe. Or try it with hot fudge sauce.

    You can store the frosted cake, covered, up to 2 days.

    Peanut Butter Brownie Cake with peanut butter frosting

    Peanut Butter Brownie Cake

    Tara Teaspoon
    Cream cheese and peanut butter frosting is layered between rich, chocolate brownies. This is pretty much everything perfect packed into one, beautiful and delicious cake!
    5 from 4 votes
    Print Recipe Pin Recipe
    Prep Time 25 mins
    Cook Time 30 mins
    Total Time 1 hr 30 mins
    Course Dessert
    Cuisine American
    Servings 8 to 10
    Calories 777 kcal

    Ingredients
      

    • 1 box brownie mix batter prepared
    • 1 cup smooth peanut butter
    • ½ cup butter room temperature
    • 4 oz cream cheese room temperature
    • ¼ teaspoon salt
    • 3 cups confectioners’ sugar
    • 2½ tablespoon milk
    • Chopped peanuts for garnish

    Instructions
     

    • Heat oven to 350ºF. Line two 8-inch or 7-inch round pans with circles of parchment and spray with cooking spray. (7-inch pans will create thicker layers). Divide brownie batter between the two pans. Bake until just cooked through, about 35 min. Cool brownies completely.
    • In a mixing bowl beat together the peanut butter, butter, cream cheese and salt. Mix in the confectioners’ sugar, mixture will be stiff, then add the milk and beat until smooth.
    • If piping, transfer frosting to a piping bag fitted with a #825 open star tip. Remove parchment from the bottoms of the brownie cakes and place one on a serving platter. Pipe or spread half the frosting on the surface. Place the other brownie cake on top and pipe or spread the remaining frosting on top. Sprinkle with chopped peanuts.

    Notes

    A boxed brownie mix just took on a whole new meaning!
     
    The nutrition is calculated for 8 servings.

    Nutrition

    Calories: 777kcalCarbohydrates: 107gProtein: 13gFat: 35gSaturated Fat: 14gCholesterol: 47mgSodium: 583mgPotassium: 242mgFiber: 2gSugar: 79gVitamin A: 553IUCalcium: 34mgIron: 2mg
    Want to watch videos to show you how to cook?Check out our Youtube and try this recipe and more.

    The best frosting recipes to make

    • Light and Fluffy Vanilla Frosting
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    • Creamy Caramel Icing
    • Cream Cheese Frosting
    • Extra Rich Milk Chocolate Frosting
    • Best Fluffy Peanut Butter Frosting
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    About Tara Teaspoon

    I’ve been in the food publishing business for over 20 years, creating recipes & food-styling for magazines, books, television & advertising. Order my new cookbook & stick around for amazing things to eat.

    Find out more!

    Recipe and photos by Tara Teaspoon

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    Filed Under: Baking + Desserts, Birthdays, Brownies, Cake, Frosting + Icing Tagged With: brownies, cake, chocolate, cream cheese, dessert, frosting, peanut butter, peanut butter frosting

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    I’ve been sharing my original ideas for years. What began as a passion, turned into a career as magazine Food Editor at Martha Stewart and then Entertaining Director at Ladies’ Home Journal. All in all, I’ve shared recipes, cooking tips, and DIY ideas with more than 24 MILLION people. Make that 24 million and one. Thanks for stopping by Tara Teaspoon!

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