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    TaraTeaspoon » Recipes » Brownies

    Peanut Butter Brownie Cake

    Published: Sep 10, 2014 · Updated: Aug 20, 2022 by Tara Teaspoon · This page contains affiliate and sponsored links. See my full disclosure

    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:
    • 📖 Recipe
    • 💬 Comments

    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.

    📖 Recipe

    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 6 votes
    Print Recipe Pin Recipe
    Work Time 25 minutes mins
    Cook Time 30 minutes mins
    Total Time 1 hour hr 30 minutes mins
    Course Dessert
    Servings 8 to 10

    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
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    Tara in kitchen making salad

    Tara Teaspoon

    I’ve been in food publishing for over 25 years, creating recipes & food-styling for magazines, books, television, food brands, & advertising. With two cookbooks under my belt and thousands of my recipes at your fingertips, I hope you'll be inspired to spend more time in the kitchen!

    More about Tara

    Recipe and photos by Tara Teaspoon

    Comments

      5 from 6 votes (3 ratings without comment)

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    1. thebakerswardrobe says

      September 13, 2014 at 2:13 pm

      Hey looked at your blog it look awesome love it. Would be cool if you could check out mine I do something similar!

      Reply
    2. Mary Bench says

      July 17, 2018 at 10:44 pm

      This is one of my top-10 Tarateaspoon recipes! It is amazing!

      Reply
    3. Brittany Smart says

      July 19, 2018 at 4:14 pm

      Brownies for cake? This is amazing!!

      Reply
    4. Marie says

      April 24, 2020 at 11:33 pm

      I love peanut butter and I love brownies. This cake is rich, delicious, and moist! Super easy too with the brownie mix. Genius!

      Reply

    Hi, I'm Tara Teaspoon!

    I’ve been sharing my original ideas for years. What began as a passion, turned into a publishing career as Food Editor at Martha Stewart Living and Ladies’ Home Journal magazines.

    Now I write cookbooks, and share delicious recipes and expert cooking tips with you here! Thanks for stopping by Tara Teaspoon!

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