Ingredients
For the Cake:
- 2 cups all-purpose flour
- 2 teaspoons baking powder
- ½ teaspoon baking soda
- ½ teaspoon salt
- ½ cup unsalted butter, softened
- 1 cup creamy peanut butter
- 1 cup granulated sugar
- 1 cup brown sugar, packed
- 2 large eggs
- 1 teaspoon vanilla extract
- 1 cup buttermilk
For the Frosting:
- ½ cup unsalted butter, softened
- ½ cup creamy peanut butter
- 3 cups powdered sugar
- ¼ cup milk
- 1 teaspoon vanilla extract
Instructions
Prepare the Cake:
- Preheat oven to 350°F (175°C). Grease and flour a 9×13-inch baking pan.
- In a medium bowl, whisk together flour, baking powder, baking soda, and salt. Set aside.
- In a large bowl, cream together butter, peanut butter, granulated sugar, and brown sugar until light and fluffy.
- Beat in eggs, one at a time, then add vanilla extract.
- Gradually add dry ingredients, alternating with buttermilk, beginning and ending with dry ingredients. Mix until just combined.
- Pour batter into prepared pan and smooth the top.
- Bake for 30-35 minutes or until a toothpick inserted in the center comes out clean.
- Let the cake cool completely before frosting.
Prepare the Frosting:
- In a bowl, cream together butter and peanut butter until smooth.
- Gradually add powdered sugar, milk, and vanilla extract, beating until light and fluffy.
Assemble the Cake:
- Spread the frosting evenly over the cooled cake.
- Slice and serve!
Notes
- For a crunchy texture, use crunchy peanut butter instead of creamy.
- For a chocolate twist, drizzle melted chocolate or swirl it into the batter.
- To reduce sweetness, add a pinch of salt to the frosting.
- For a layered cake, divide batter into two 8-inch round cake pans and frost between layers.
- Prep Time: 20 minutes
- Cook Time: 30-35 minutes
- Category: Desserts
- Method: Baking
- Cuisine: American
- Diet: Vegetarian
