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Peanut Butter Cake with Chocolate Frosting | A gluten free peanut butter cake recipe with chocolate buttercream frosting and a rich chocolate ganache. A wonderful birthday cake recipe!
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5 from 1 vote

Peanut Butter Cake with Chocolate Frosting

This is our family's all-time favorite peanut butter cake recipe!!  It is covered with a chocolate buttercream frosting and a rich chocolate ganache.  
Prep Time10 minutes
Cook Time30 minutes
Total Time40 minutes
Course: Dessert
Cuisine: American
Servings: 20 servings

Ingredients

  • ¾ c butter
  • 2 c sugar
  • 5 eggs
  • 1 c smooth peanut butter
  • 1 t vanilla extract
  • 1 1/3 c white rice flour
  • 2/3 c tapioca starch
  • 1 t xanthan gum
  • (Or 2 c. all purpose 1-1 gluten free baking flour instead of the above 3 ingredients)
  • 1 t baking soda
  • ½ t salt
  • 1 c buttermilk

Chocolate Frosting:

  • ½ c butter softened
  • 3 oz semi-sweet chocolate bark melted
  • 1 t vanilla
  • ¼ t salt
  • 6 c powdered sugar

Chocolate Ganache:

  • 4 oz semi-sweet chocolate bark
  • ½ c heavy whipping cream

Instructions

For the Peanut Butter Cake:

  • Preheat oven to 350 degrees.
  • In the bowl of an electric mixer combine butter and sugar. Beat on medium for 2 minutes.
  • Add eggs, one at a time, and continue mixing on medium speed. Add peanut butter and vanilla and mix until well incorporated.
  • In a separate large bowl combine white rice flour, tapioca starch, xanthan gum, baking soda and salt. Toss to combine.
  • Alternatively add dry ingredients and buttermilk to the butter/sugar mixture, starting and ending with the dry ingredients.
  • Spray 3 9-inch round cake pans with non-stick cooking spray. Fill each pan with even amounts of cake batter.
  • Bake in preheated oven for 25-30 minutes or until toothpick inserted into center comes out clean.
  • Let cakes cool completely before frosting.

For the Chocolate Frosting:

  • Combine butter, melted chocolate, vanilla and salt in the bowl of an electric mixer. Mix until combined.
  • Alternatively add powdered sugar and heavy whipping cream to butter mixture until all ingredients are added. If a thicker consistency is desired, add more powdered sugar. A thinner consistency, add more whipping cream.
  • Frost cake layers and then cover the outside and top of the cake with frosting.

For the Chocolate Ganache:

  • Place chocolate bark and heavy whipping cream in the top bowl of a double broiler. Whisk for 3-5 minutes, or until chocolate and cream become a smooth consistency.
  • Pour ganache immediately over cake.
  • Serve and enjoy!

Nutrition

Calories: 541kcal | Carbohydrates: 78g | Protein: 6g | Fat: 23g | Saturated Fat: 12g | Cholesterol: 81mg | Sodium: 357mg | Potassium: 188mg | Fiber: 1g | Sugar: 60g | Vitamin A: 525IU | Calcium: 39mg | Iron: 1.2mg