Peanut Butter Explosion Cake Recipe
Peanut butter and chocolate layered cake.
Was this page helpful?
Help improve this recipe for others.
Send this recipe to your inbox.
We'll email it straight to you - plus weekly cooking inspiration.
Ingredients
Some product links may be affiliates. If you buy through them, you're supporting the site and Pekin may earn a commission at no extra cost to you.
Cake Layers
Peanut Butter Frosting
Chocolate Ganache
Decoration
Method
Cake Layers
- 1
Preheat the Oven
Preheat your oven to 350°F (175°C) and grease two 9-inch round cake pans.
- 2
Mix Dry Ingredients
In a large mixing bowl, sift together the all-purpose flour, granulated sugar, cocoa powder, baking powder, baking soda, and salt.
- 3
- 4
Incorporate Boiling Water
Carefully stir in the boiling water until the batter is smooth. The batter will be thin.
- 5
Bake the Cakes
Divide the batter evenly between the prepared cake pans and bake for 30-35 minutes or until a toothpick inserted in the center comes out clean.
- 6
Cool the Cakes
Allow the cakes to cool in the pans for 10 minutes before transferring them to a wire rack to cool completely.
Peanut Butter Frosting
- 7
Prepare the Frosting
In a large mixing bowl, beat together the creamy peanut butter and softened unsalted butter until smooth and creamy.
- 8
Add Powdered Sugar
Gradually add the powdered sugar, mixing until well combined. If the frosting is too thick, add milk one tablespoon at a time until the desired consistency is reached.
- 9
Add Vanilla Extract
Stir in the vanilla extract until fully incorporated.
Chocolate Ganache
- 10
Heat the Cream
In a small saucepan, heat the heavy cream over medium heat until it just begins to simmer.
- 11
Melt the Chocolate
Remove from heat and add the semi-sweet chocolate chips. Let sit for a few minutes, then stir until smooth and glossy.
Assembly and Decoration
- 12
Layer the Cake
Place one cake layer on a serving platter. Spread a generous amount of peanut butter frosting on top, then place the second layer on top.
- 13
Frost the Cake
Spread the remaining peanut butter frosting over the top and sides of the cake.
- 14
Pour Ganache
Drizzle the chocolate ganache over the top of the frosted cake, allowing it to drip down the sides.
- 15
Decorate
Sprinkle the chopped peanuts and chocolate shavings on top for decoration.