Peanut Butter Sheet Cake

Total Time
Prep 20 mins
Cook 20 mins

Almost like a brownie since it's made in a jelly roll pan. Of course I can never get enough of my fixation on p.b. and the best part is the frosting--

Ingredients Nutrition


  1. Combine 1st four ingredients in a saucepan.
  2. Bring to a boil.
  3. Remove from heat.
  4. Mix in remaining ingredients.
  5. Pour into a lightly greased jelly roll pan.
  6. Bake 350 degrees for 20-25 minutes.
  7. Cool and frost.
  8. Frosting:.
  9. Place 1st three ingredients in a saucepan.
  10. Bring to a boil.
  11. Remove from heat.
  12. Blend in powdered sugar and vanilla until smooth.


Most Helpful

It is very good, but as some have said also very sweet. It didn't stop everyone from gobbling it up though. Thank you for posting!

Bread 'n Butter July 03, 2010

Very tasty peanut butter cake! I made a layer cake out of it. I used the peanut butter icing for the middle layer and covered the rest of the cake with dark chocolate frosting. We felt that the peanut butter icing was a little too sweet for our taste, but the dark chocolate helped to cut the sweetness. Made for Sweet Traditions tag.

AcadiaTwo November 29, 2009

I made this for DH's ranch boys. They just loved it! The frosting is just delicious! I used Splenda in place of sugar so I could try this. Worked great with 1 3/4 cup Splenda. I will make this delicious cake often! Thanks CB! Made for KK Mini cookathon bonus!

kittycatmom October 26, 2009

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