Peanut Butter Sheet Cake

Peanut Butter Sheet Cake from

I know high school cafeterias get a bad rap, and I’m sure most of them deserve it. I don’t recall my own high school cafeteria being anything special. In fact, I’m sure I ate the salad bar more often than not because it was more palatable than whatever hot lunch was being served. But I do have fond memories of a couple of dishes they made that I will occasionally crave. Today it was their Peanut Butter Sheet Cake. The sweet ladies who ran our school cafeteria made a delicious white sheet cake that they topped with peanut butter icing/glaze. And since my scheduled lunch time was 10:50 (Why on earth so early???) the cake was always still warm. Perhaps my memories of the food are skewed by my affection for the people with whom I shared my lunch hour, but this Peanut Butter Sheet Cake brought back to some very some fun times.

Peanut Butter Sheet Cake is super easy to make, and it only takes about 30 minutes total, since you can put the icing on it as soon as it comes out of the oven.

Peanut Butter Sheet Cake from

For the cake:

Preheat oven to 350 degrees. In a large mixing bowl, combine flour, sugar, and salt and mix well. In a large measuring cup, pour in buttermilk, beaten eggs, vanilla, water, and baking soda. Stir or whisk together. Pour wet mixture into dry mixture and mix until all is well-blended. Pour into an ungreased jelly roll pan.

Peanut Butter Sheet Cake from

Bake 20 minutes.

Peanut Butter Sheet Cake from

For the icing:

Mix hot melted butter with peanut butter and marshmallow cream. Whisk together until blended. If not stirring well, heat in microwave for about 30 seconds and try again.

Whisk in confectioner’s sugar, vanilla, and milk. Blend well. If too thick, add more milk by tablespoons.

Peanut Butter Sheet Cake from

Pour over warm cake and spread evenly.

Peanut Butter Sheet Cake from

[yumprint-recipe id=’16’]I know I’m really in the minority for even asking this, but do you have favorite food memories from your school cafeteria?

If you like our Peanut Butter SHeet Cake, you might also enjoy our Hello Dollies or our Perfect Pound Cake. And as always, you can see all of our recipes in our Recipe Index.

Peanut Butter Sheet Cake from


  1. I have been looking for this cake from when I was in elementary school. I am 30 and I only have memories of this mystery cake. Thank you I will try if this is it

  2. i have been lookin for this peanut butter bread i had in highschool back in the days why cant i find it any where im 40 and i still think about it lol…

  3. This looks exactly like the peanut butter cake that I used to love in Junior High School. It is the only food that I remember liking from any school cafeteria ever, and I have looked for it before to no avail. Can’t wait to try it!!! Thank you!!!

  4. Am I missing something? I can’t find an ingredient list that tells how much of anything to use for this recipe. Just pictures of the ingredients. Is an ad covering it?

  5. Theresa Arney says

    Can’t find full recipe

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