There’s no shame in using a cake mix sometimes to prepare yummy, homemade treats. Our ooey gooey chocolate peanut butter cake recipe is an eccentric twist on a traditional favorite!

While we thought the chocolate and peanut butter combo was pretty wild, you can also get outrageous with your recipe. Add chocolate chips, toffee pieces or other goodies between the layers.

The key to achieving the gooey results that drew you to this recipe in the first place is to remove the cake from the oven before it completely sets in the center. Cut into squares and watch this cake disappear!

A slice of a chocolate peanut butter cake

Chocolate Peanut Butter Cake Recipe

Expand upon your love for delicious butter cake with this ooey gooey chocolate peanut butter cake recipe! It's perfect for feeding a crowd.


Yield: 12 -16 servings
5 from 3 ratings
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chocolate layer

peanut butter layer



  • Preheat oven to 350 degrees then coat a 9" x 13" cake pan with non-stick spray. In a large bowl, combine cake mix, melted butter and beaten egg until no lumps remain. Press mixture evenly into the bottom of a prepared cake pan then set aside.
  • Rinse and dry bowl then add melted butter and peanut butter. Mix until completely combined and smooth then stir in beaten eggs, powdered sugar, flour and vanilla. Mix until a smooth mixture forms. Spread evenly over the top of the chocolate layer.
  • Bake 45–55 minutes or until slightly underdone in center. Remove from oven then place on a rack to cool for 10 minutes.
  • Meanwhile, melt chocolate chips together with heavy cream in the microwave for 30–45 seconds. Stir until completely combined then drizzle over warm cake. Scoop or slice then serve warm, maybe with a scoop of vanilla ice cream on top!


This dessert is so good on its own, but a scoop of vanilla ice cream really takes it over the top!
Calories: 631kcal, Carbohydrates: 73g, Protein: 9g, Fat: 37g, Saturated Fat: 16g, Polyunsaturated Fat: 3g, Monounsaturated Fat: 8g, Cholesterol: 107mg, Sodium: 457mg, Potassium: 173mg, Fiber: 3g, Sugar: 53g
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Chocolate peanut butter cake recipe