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Chocolate Sheet Cake slice on a square white plate with raspberries

Chocolate Sheet Cake

This marvelous frosted chocolate sheet cake recipe is perfect when you need to serve a crowd!


For the cake:

For Frosting:

Use an 18 x13 sheet cake pan.


  1. Preheat oven to 350ยบ. Spray an 18 x 13-inch sheet pan with non-stick cooking spray. Set aside.
  2. In a mixing bowl, whisk together flour, sugar, and salt.
  3. In a saucepan, melt butter. Add cocoa. Stir together.
  4. Add the hot coffee, let the mixture boil for 30 seconds, then turn off the heat. Pour over flour mixture, and stir lightly to cool.
  5. In a measuring cup, pour the buttermilk and add beaten eggs, baking soda, and vanilla. Stir buttermilk mixture into butter and chocolate mixture until well combined. Pour into sheet cake pan and bake for 20 minutes or till a toothpick inserted in the middle comes out clean.
  6. While cake is baking, make the icing. Melt butter in a saucepan. Add cocoa, stir to combine, then turn off heat. Add the milk, vanilla, and powdered sugar. Whisk together till mixture is smooth and pour over warm cake.
  7. Cut when cool.


Adapted from Pioneer Woman