Chocolate Peanut Butter Cup Sheet Cake

Total Time
Prep 15 mins
Cook 25 mins

This is a GREAT cake that can easily go to a pot luck or picnic or just about anywhere else too! It is so good and everyone LOVES it! My family enjoys it and so do all my co-workers. It tastes like a peanut butter cup! It is a MUCH requested recipe. I promise it will be a much requested recipe at your house too if you give it a try!

Ingredients Nutrition


  1. Mix together all the dry cake ingredients in a large bowl.
  2. Bring to a boil the water and margarine.
  3. Pour over the dry cake mixture and add 2 beaten eggs, 1/2 cup buttermilk and vanilla.
  4. Mix well.
  5. Coat a 10x15-inch jelly roll pan with a non-stick spray and pour in cake mixture.
  6. Bake cake at 350°F for 25 minutes.
  7. Frosting: You MUST FROST this cake while still hot/warm from the oven.
  8. Mix together well the 1/2 cup peanut butter with the can of milk chocolate frosting in a small bowl.
  9. Spread on top of still warm cake.
  10. Let cake cool to room temperature and serve.
  11. YUM!
Most Helpful

5 5

Made this to satisfy a pb-choc craving and it sure does the trick! I especially love the hint of cinnamon in the cake. An easy-to-make, absolutely delicious cake. Thanks for posting!

4 5

Very rich and delicious. I think I'd like more peanut butter in the frosting though. I cut mini pb cups in half and pressed half into each piece of cake.

5 5

My DD wanted this for her birthday cake! Everyone loved it & the recipe goes into my keepr file. Thanks!