Peanut Butter Sheet Cake

Peanut Butter is my weakness right now. I saw this on pinterest and had to give it a try. I love chocolate sheet cake but this peanut butter sheet cake is amazing!
Peanut Butter Sheet Cake
Save RecipeSave Recipe


  • 1/4 cup creamy peanut butter
  • 1 cup water
  • 1/2 cup butter
  • 1 cup sugar
  • 1 cup brown sugar
  • 2 cups flour
  • 1 tsp salt
  • 1 tsp baking soda
  • 2 eggs
  • 1/2 cup skim milk
  • 1 tsp vanilla
  • Frosting:
  • 3/4 cup butter
  • 6 Tbsp skim milk
  • 1/2 cup peanut butter
  • 3 1/2 cups powdered sugar
  • 1 Tbsp vanilla


  1. Directions
  2. Preheat oven to 375 degrees.
  3. In a medium pot add the peanut butter, water, and butter and bring to a boil. Remove from heat.
  4. In a separate bowl, mix together the sugar, brown sugar, flour, salt, and baking soda with a fork. Add to the peanut butter mixture.
  5. Add the eggs, milk, and vanilla to the bowl and mix well.
  6. Stir well and pour into greased cookie sheet pan (12X17 jellyroll pan). Bake for 15 minutes at 375 degrees.
  7. For the Frosting:
  8. In a small pot bring the butter, milk, and peanut butter to a boil.
  9. Remove pan from the heat and add the powdered sugar and vanilla.
  10. Pour frosting over the warm cake.
  11. Wait until it is cool the cut and serve.



502 cal


130 g


2 g
Click Here For Full Nutrition, Exchanges, and My Plate Info
Print Friendly, PDF & Email

Comment on this Recipe

9 Responses to “Peanut Butter Sheet Cake”

  1. Just had to come back to tell you. My husband ask where I got the recipe for this cake. When I told him about your blog he told me to tell y'all thank you. So.. from my peanut butter lovin' husband(and his wife) a great big THANK YOU!!! The only change I made was Crunchy peanut butter instead of smooth. This is a keeper, and I am sharing it with my family. Thank you again.
  2. Hello gals!
    I am a huge sucker for peanut butter. I am one of those people who will eat peanut butter right out of the jar! This cake is something I would definitely enjoy. Thanks so much for sharing on Marvelous Mondays! I will be featuring this on my blog at tonight's party.

    Have a fabulous Sunday!


Leave a Comment