Go Back Email Link

Chocolate Sheet Cake with Chocolate Frosting

Chocolate sheet cake with chocolate frosting is moist and rich and feeds a crowd. The icing is not too sweet with a light chocolate flavour.
Prep Time10 minutes
Cook Time30 minutes
Total Time40 minutes
Course: Dessert
Keyword: cake, chocolate, chocolate cake
Servings: 30 servings

Equipment

  • 16"x12" cake pan

Ingredients

  • 2 cups all-purpose flour
  • 2 cups white sugar
  • ⅔ cup unsweetened cocoa powder
  • 2 tsp baking powder
  • ½ tsp baking soda
  • 1 tsp fine sea salt
  • 3 eggs
  • 1¾ cup milk
  • ¼ cup melted butter, cooled
  • 1 tsp vanilla extract

Frosting

  • ½ cup butter
  • 2 cups powdered sugar
  • 2 Tbsp unsweetened cocoa powder
  • 2 Tbsp milk
  • ½ tsp vanilla extract

Instructions

  • Preheat oven to 350℉
  • Generously grease a 16-inch by 12-inch cake pan.
  • In a large bowl, whisk together, flour, sugar, cocoa powder, baking powder, baking soda, and sea salt.
  • In a separate bowl, beat the eggs with milk, melted butter and vanilla extract.
  • Pour wet ingredients into the dry and stir well to combine
  • Pour batter into prepared pan.
  • Bake for 30 minutes or until a toothpick inserted in centre comes out clean.
  • Allow to cool completely before frosting.

Frosting

  • Cream butter in a large bowl.
  • Add half of the sugar and all the cocoa powder.
  • Beat on low speed until combined.
  • Beat in remaining sugar, milk and vanilla extract.
  • Continue beating until smooth.
  • Spread evenly over cooled cake.

Notes

This frosting is light on the chocolate. If you prefer a deeper chocolate flavour, add 2 additional tablespoons of cocoa powder and 1 tablespoon of milk to get a richer chocolate flavour.