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Piece of chocolate cake on plate.
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5 from 5 votes

Chocolate Sheet Cake

Easy and delicious chocolate sheet cake
Prep Time10 mins
Cook Time25 mins
Total Time35 mins
Course: Dessert
Cuisine: American
Keyword: chocolate sheet cake
Servings: 24
Calories: 248kcal
Author: Heather


  • 1 box Devils Food Chocolate Cake Mix
  • 1 3 oz instant chocolate pudding mix
  • 1 cup buttermilk
  • 3 eggs
  • 1 cup water
  • 1/3 cup vegetable oil
  • 4 cups powdered sugar
  • 1/4 cup cocoa powder
  • 1/4 cup milk
  • 1/2 cup butter
  • 1/2 teaspoon vanilla extract


  • Preheat oven to 350 degrees F.
  • Pour cake mix, pudding mix, eggs, water, oil and buttermilk in a mixing bowl. Mix until combined.
  • Spray a 9 x 13 in pan with non-stick spray. Spread batter in pan. Bake for approximately 20- 25 minutes or until toothpick comes out clean.


  • Add butter, cocoa powder and milk to small saucepan. Cook over medium heat until it just starts to boil. Remove from heat.
  • Add powdered sugar into mixing bowl. Add in vanilla extract and then pour chocolate mixture over powdered sugar. Mix until creamy. Spread over cake.



Calories: 248kcal | Carbohydrates: 38g | Protein: 2g | Fat: 11g | Saturated Fat: 6g | Cholesterol: 32mg | Sodium: 262mg | Potassium: 107mg | Fiber: 1g | Sugar: 30g | Vitamin A: 168IU | Calcium: 47mg | Iron: 1mg