Description

This Peanut Butter Cake with Peanut Butter Frosting is a rich and moist dessert perfect for peanut butter lovers. The cake combines smooth peanut butter in the batter for a deep nutty flavor, while the creamy peanut butter frosting adds a luscious finishing touch. Ideal for celebrations or casual indulgence, this easy-to-make recipe yields a tender cake with a balanced sweetness and decadent frosting.

Ingredients

Scale

Cake Ingredients

1 cup smooth peanut butter
1 1/2 cups all-purpose flour
1 cup granulated sugar
2 tsp baking powder
2 large eggs
1/2 cup butter, softened
1/2 cup milk

Frosting Ingredients

1 cup powdered sugar
1/2 cup smooth peanut butter
1/4 cup butter, softened
1 tsp vanilla extract

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Instructions

Prepare the Cake Batter: In a large mixing bowl, cream together the 1/2 cup softened butter and 1 cup granulated sugar until the mixture is light and fluffy. Beat in the 2 large eggs one at a time, fully incorporating each before adding the next.
Add Peanut Butter and Dry Ingredients: Stir in 1 cup smooth peanut butter and 1 tsp vanilla extract until well combined. In a separate bowl, sift together 1 1/2 cups all-purpose flour and 2 tsp baking powder. Gradually add the dry ingredients to the wet mixture alternately with 1/2 cup milk, beginning and ending with the flour mixture, until just combined.
Bake the Cake: Preheat your oven to 350°F (175°C). Grease and flour an 8-inch cake pan. Pour the batter evenly into the pan and smooth the top. Bake for approximately 30 minutes or until a toothpick inserted into the center comes out clean. Remove from the oven and allow the cake to cool completely in the pan on a wire rack.
Make the Frosting: In a medium mixing bowl, beat together 1/4 cup softened butter and 1/2 cup smooth peanut butter until creamy and smooth. Gradually add 1 cup powdered sugar, beating continuously. Add 1 tsp vanilla extract and mix until the frosting is light and fluffy.
Frost the Cake: Once the cake has cooled completely, spread the peanut butter frosting evenly over the top and sides of the cake using a spatula or knife. Chill the cake briefly if desired to set the frosting before serving.

Notes

Use smooth peanut butter for a silky texture; chunky peanut butter will alter the cake’s crumb.
The cake can be stored at room temperature in an airtight container for up to 3 days or refrigerated for up to a week.
For added texture, consider sprinkling chopped peanuts on top of the frosting.
This cake pairs well with a glass of cold milk or a cup of coffee.
You can substitute milk with a plant-based alternative for a dairy-free version, but it may affect texture slightly.