Print

Peanut Butter Cake

Peanut Butter Cake

5 Stars 4 Stars 3 Stars 2 Stars 1 Star

No reviews

This rich and moist peanut butter cake features tender layers frosted with creamy peanut butter buttercream and finished with a smooth peanut butter ganache drizzle. Perfect for celebrations or casual cravings.

Ingredients

Scale
  • 2½ cups all-purpose flour
  • 2½ teaspoons baking powder
  • ½ teaspoon salt
  • ½ cup unsalted butter, softened
  • 1 cup granulated sugar
  • ½ cup brown sugar, packed
  • 1 cup creamy peanut butter
  • 3 large eggs
  • 1½ teaspoons vanilla extract
  • 1 cup buttermilk
  • ¾ cup creamy peanut butter (for frosting)
  • ½ cup unsalted butter, softened (for frosting)
  • 2 cups powdered sugar
  • 2 to 3 tablespoons heavy cream
  • Pinch of salt (for frosting)
  • ½ cup peanut butter (for ganache)
  • ¼ cup heavy cream (for ganache)

Instructions

  1. Preheat your oven to 350°F (175°C). Grease and line two 8-inch round cake pans with parchment paper.
  2. In a bowl, whisk together flour, baking powder, and salt. In another large bowl, beat butter, granulated sugar, brown sugar, and peanut butter until creamy. Add eggs one at a time, then mix in vanilla extract.
  3. Alternate adding the dry mixture and buttermilk into the wet mixture, starting and ending with the dry ingredients. Mix until just combined.
  4. Divide the batter evenly between prepared pans and smooth the tops.
  5. Bake for 25–30 minutes or until a toothpick inserted in the center comes out clean. Let cakes cool in pans for 10 minutes, then transfer to wire racks to cool completely.
  6. To make the frosting, beat peanut butter and butter until smooth. Gradually add powdered sugar and beat until fluffy. Add heavy cream to adjust the consistency. Add a pinch of salt.
  7. Once the cakes are completely cool, frost between the layers and around the outside using a spatula.
  8. For the ganache, warm peanut butter and heavy cream together until smooth. Let cool slightly and drizzle over the top of the frosted cake.
  9. Chill slightly if needed, slice, and serve.

Notes

  • For a stronger peanut flavor, use natural peanut butter but make sure it’s well mixed.
  • Let the frosted cake rest before slicing for cleaner cuts.
  • You can skip the ganache for a simpler version.