Chocolate Peanut Butter Sheet Cake Recipe

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Norma Published: December 23, 2020 Modified: June 1, 2021

How To Make Chocolate Peanut Butter Sheet Cake

Rich, decadent and moist chocolate sheet cake is topped with a smooth peanut butter icing in this luscious dessert. Serve with a glass of milk if you like.

Preparation: 5 minutes
Cooking: 15 minutes
Total: 20 minutes



For Chocolate Sheet Cake:

  • 1cupbutter
  • 1cupwater
  • ¼cupcocoa powder
  • 2cupsflour
  • 2cupssugar
  • 1tspbaking soda
  • ½tspsalt
  • ½cupsour cream

For Peanut Butter Icing:

  • 3cupspowdered sugar
  • cupmilk,+2 tbsp
  • 6tbspbutter,melted
  • 1tspvanilla
  • ¾cuppeanut butter


Chocolate Sheet Cake:

  1. Preheat oven to 350 degrees F. Combine butter, water, and cocoa powder in a large saucepan then bring to a boil. Remove from heat then set aside to cool slightly.

  2. Whisk together flour, sugar, baking soda, and salt in a large bowl then create a well in the center. Add cocoa mixture then whisk until smooth. Add sour cream then whisk until smooth.

  3. Pour cake batter into a non-stick sprayed baking sheet or jelly roll pan, then spread evenly. Bake for 15 to 18 minutes, or until a toothpick inserted into the center comes out clean.

Peanut Butter Icing:

  1. Whisk together powdered sugar, milk, melted butter, and vanilla in a large bowl. Add peanut butter then whisk to combine.

  2. Microwave for 30 seconds then stir if too thick. Pour over warm cake then spread evenly. Allow to cool then slice and serve.


  • Calories: 474.17kcal
  • Fat: 23.96g
  • Saturated Fat: 12.33g
  • Trans Fat: 0.65g
  • Monounsaturated Fat: 7.72g
  • Polyunsaturated Fat: 2.25g
  • Carbohydrates: 63.34g
  • Fiber: 1.52g
  • Sugar: 48.80g
  • Protein: 5.04g
  • Cholesterol: 46.20mg
  • Sodium: 163.01mg
  • Calcium: 29.32mg
  • Potassium: 127.56mg
  • Iron: 0.62mg
  • Vitamin A: 148.45µg
  • Vitamin C: 0.06mg
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