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Chocolate Sheet Cake
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5 from 8 votes

Chocolate Sheet Cake

My favourite Chocolate Sheet Cake from scratch. Made without buttermilk and super easy to make, you will never need another chocolate cake recipe.
Prep Time10 minutes
Cook Time35 minutes
Total Time45 minutes

Ingredients

Cake

  • 2 cups granulated sugar
  • 1 3/4 cup all-purpose flour
  • 3/4 cup unsweetened cocoa powder
  • 1 1/2 tsp baking powder
  • 1 1/2 tsp baking soda
  • 1 tsp salt
  • 2 large eggs
  • 1 cup milk
  • 1/2 cup canola oil
  • 2 tsp vanilla extract
  • 1 cup boiling water

Frosting

  • 1/2 cup salted butter, softened
  • 2/3 cup unsweetened cocoa powder
  • 3 cups powdered sugar
  • 1/3 cup milk of choice
  • 1 tsp vanilla extract

Instructions

  • Preheat the oven to 350°F. Lightly spray a 9x13 inch baking pan with cooking spray and set aside.
  • In a medium bowl, mix together the sugar, flour, cocoa powder, baking powder, baking soda and salt. Add in the eggs, milk, vegetable oil and vanilla, and mix until fully incorporated.
  • Slowly mix in the boiling water. The batter will be very watery, and that is okay!
  • Pour the batter into the prepared baking pan, and bake in the preheated oven for 35-40 minutes, or until a toothpick inserted comes out clean. Allow to cool.
  • Meanwhile, in a medium bowl, cream together all of the frosting ingredients until smooth. Frost the cake once it is cool.

Notes

Adapted from Hershey's.