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Peanut Butter Sheet Cake from Farmwife Feeds is a homemade cake and icing that will feed a crowd. #peanutbutter #cake #homemade

Peanut Butter Sheet Cake

A great homemade cake and icing that will feed a crowd.
5 from 1 vote


Cake Ingredients

  • 2 cups flour
  • 2 cups sugar
  • 1 teaspoon baking soda
  • 2 eggs
  • 1 teaspoon vanilla
  • 1 cup butter
  • 2/3 cup peanut butter
  • 1 cup water

Icing Ingredients

  • 1/2 cup peanut butter
  • 1/2 cup milk
  • 1/2 cup butter
  • 1 teaspoon vanilla
  • 3+ cups powdered sugar - divided set a couple teaspoons aside for sifting on top


Cake Instructions

  • In a large bowl combine flour, white sugar and baking soda
  • In a small bowl beat together the eggs and vanilla
  • In a small sauce pan bring to a slow boil butter, peanut butter and water - stirring constantly to combine
  • Stir peanut butter mixture into flour mixture until well combined, then add in egg mixture
  • Spread cake batter evenly in a lightly greased or parchment lined jelly roll pan or high sided cookie sheet
  • Bake in a 375° pre-heated oven for 20 minutes - until toothpick comes out of center clean
  • Allow cake to cool completely before icing

Icing Instructions

  • In a large saucepan cook the peanut butter, milk, vanilla and butter till melted and combined
  • Remove pan from heat and stir in 3 cups powdered sugar slowly until all sugar is well combined and melted in
  • Pour icing on cake immeditaly and spead out - allow icing to cool and harded
  • Sprinkle with extra powdered sugar if desired