Peanut Butter Sheet Cake

Peanut Butter Sheet Cake


"Texas Sheet Cake made with peanut butter instead of chocolate! Wonderfully moist with a delicious peanut butter frosting!"


45 m servings 321 cals
Serving size has been adjusted!

Original recipe yields 20 servings



  • Calories:
  • 321 kcal
  • 16%
  • Fat:
  • 16.6 g
  • 26%
  • Carbs:
  • 39.9g
  • 13%
  • Protein:
  • 5.1 g
  • 10%
  • Cholesterol:
  • 40 mg
  • 13%
  • Sodium:
  • 184 mg
  • 7%

Based on a 2,000 calorie diet

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  • Prep

  • Cook

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  1. Preheat the oven to 350 degrees F (175 degrees C). Grease a 10x15x1 inch jellyroll pan.
  2. In a large bowl, stir together the flour, 2 cups sugar, baking soda and salt. Set aside. Combine the water and 3/4 cup of butter in a saucepan, and bring to a boil. Remove from the heat and stir in 1/2 cup peanut butter and vegetable oil until well blended. Stir this mixture into the dry ingredients. Combine the eggs, buttermilk and vanilla; stir into the peanut butter mixture until well blended. Spread the batter evenly in the prepared pan.
  3. Bake for 18 to 26 minutes in the preheated oven, or until a toothpick inserted near the center comes out clean.
  4. While the cake bakes, place 2/3 cup sugar, evaporated milk, and butter in a saucepan. Bring to a boil, stirring constantly. Cook stirring for 2 minutes. Remove from heat and stir in the peanut butter, marshmallows and vanilla until marshmallows are melted and the mixture is smooth.
  5. Spoon the frosting over the warm cake and spread in an even layer. Allow to cool before cutting and serving.
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  1. 149 Ratings


This is delicious. Just as moist and rich as the original chocolate version. I did make one modification, I used two sticks of butter rather than part butter part oil. If you have never made a T...

Really good! I made this for work and it was well received. I made it as written except that I doubled the icing. Because so many reviewers commented that the peanut butter flavor was somewhat s...

This cake is wonderful!!! Rich and moist and flavorful! I used two sticks of margarine instead of butter and oil and baked it in a 9x12 pan - came out LOVELY! Great with fudge frosting!

Since peanut butter cakes can be dry, I was encouraged to see that this recipe apparently took that into consideration by including a little oil. But it disappoints. The cake is a little on the...

PB sheet cake makes it to nearly every family function on my hubby's side. I am pregnant with a craving and there's no family event in sight. So, I made my first ever pb sheet cake. The frosting...

This cake is pure heaven for the die hard peanut butter lover and is "oh, so good" served with a tall glass of milk. I've been making this cake for a long time and I have to admit that I've nev...

Turned out GREAT (used a buttercream frosting that I added peanut butter to)- good peanut butter flavor. I was afraid it would be oily like previous reviewers but it wasn't. I did add about a ...

This is a great cake. If you love peanut butter this one is perfect. I made it for work and it was gone by lunch and I made another one the same night because it is an easy cake.

Everyone has to try this cake. This is one of the best cake receipes I have ever made. I agree that the peanut butter is not overwhelming. I didn't have marshmallows in my cupboard but I did h...