Chocolate-Peanut Butter Sheet Cake Recipe
Chocolate-Peanut Butter Sheet Cake Recipe photo by Taste of Home
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Chocolate-Peanut Butter Sheet Cake Recipe

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4.5 24 24
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I love peanut butter and chocolate, so I combined recipes to blend the two. This cake is heavenly served plain or topped with ice cream. —Lisa Varner, El Paso, Texas
TOTAL TIME: Prep: 25 min. Bake: 25 min. + cooling
MAKES:15 servings
TOTAL TIME: Prep: 25 min. Bake: 25 min. + cooling
MAKES: 15 servings


  • 2 cups all-purpose flour
  • 2 cups sugar
  • 1 teaspoon baking soda
  • 1/2 teaspoon salt
  • 1 cup water
  • 1/2 cup butter, cubed
  • 1/2 cup creamy peanut butter
  • 1/4 cup baking cocoa
  • 3 large eggs
  • 1/2 cup sour cream
  • 2 teaspoons vanilla extract
  • 3 cups confectioners' sugar
  • 1/2 cup creamy peanut butter
  • 1/2 cup 2% milk
  • 1/2 teaspoon vanilla extract
  • 1/2 cup chopped salted or unsalted peanuts

Nutritional Facts

1 piece: 482 calories, 20g fat (7g saturated fat), 59mg cholesterol, 337mg sodium, 70g carbohydrate (53g sugars, 2g fiber), 9g protein.


  1. Preheat oven to 350°. Grease a 13x9-in. baking pan.
  2. In a large bowl, whisk flour, sugar, baking soda and salt. In a small saucepan, combine water, butter, peanut butter and cocoa; bring just to a boil, stirring occasionally. Add to flour mixture, stirring just until moistened.
  3. In a small bowl, whisk eggs, sour cream and vanilla until blended; add to flour mixture, whisking constantly. Transfer to prepared pan. Bake 25-30 minutes or until a toothpick inserted in center comes out clean.
  4. Prepare frosting while cake is baking. In a large bowl, beat confectioners' sugar, peanut butter, milk and vanilla until smooth.
  5. Remove cake from oven; place on a wire rack. Immediately spread with frosting; sprinkle with peanuts. Cool completely. Yield: 15 servings.
Originally published as Chocolate-Peanut Butter Sheet Cake in Taste of Home February/March 2015, p64

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pyrlgyrl User ID: 7085265 245188
Reviewed Mar. 9, 2016

"This is a great recipe; my 10 year old saw this and decided to make it. I helped her because it's a bit putzy with boiling the pb, water, etc. But worth it. I will add this to my potluck list of desserts. Super fluffy. Also, the frosting seems runny but once applied it sets up the next day even better."

vistaannie User ID: 1818596 244689
Reviewed Feb. 29, 2016

"cake has a good flavor but tje amount of icing is way too much. Half would be better."

joshua User ID: 113163 244170
Reviewed Feb. 20, 2016

"I made this cake today. I followed instructions completely, used a 9x13 pan and this cake was still so not cooked...I had to add another 15 minutes (in 5 min measures) and it is still not completely cooked. outside is but middle is not. I bake at least 3 times a week and never have a problem. I would not make this again."

hughesbambi User ID: 2603719 243632
Reviewed Feb. 11, 2016

"I made the cake as written. I would make it again with the following changes. Add baking powder as it was a tad heavy for my tastes. Also, let the cake cool a little before spreading frosting. Adding it immediately as the recipe instructions say melts the frosting and it pools along the sides. Fortunately I made it on a cold day so I put it in the garage to quickly cool and kept rearranging the frosting until it stayed put."

cbenne12 User ID: 7424916 243555
Reviewed Feb. 9, 2016

"Will be making again and again and again!"

usmcmom8 User ID: 8428443 243504
Reviewed Feb. 9, 2016 Edited Feb. 13, 2016

"This is the best cake ever! I made it for my birthday. What a treat! Everyone loved it. This will be a family favorite from now on. I used the dark chocolate cocoa. Thank you for sharing this wonderful recipe."

abashu User ID: 6784654 243120
Reviewed Feb. 3, 2016

"I say moist, better than a box mix. My husband says Yummy! My picky grandson says can I have more. This is a winner."

whoknew? User ID: 3643851 243006
Reviewed Feb. 1, 2016

"Very moist cake, and just added a splash of milk to the frosting. I thought the cake could be a tad more chocolaty. Very good recipe and easy to make:)"

dcscake_OH User ID: 228890 242895
Reviewed Jan. 31, 2016

"I have made this for home, for work, and for parties. It is so.... good. It is a great recipe. Everyone I have ever served it too, wants the recipe."

juneypoo User ID: 8311468 242732
Reviewed Jan. 28, 2016

"Excellent!!!!! I also as some people have stated gradually added the milk and didn't need to use the 1/2 cup of milk it called for. Made this for my son who came home after Afghanistan and he devoured it. I sent him home with a pan of it too :) Making it again soon because he is coming home with his wife in a few months"

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