sliced Texas Sheet Cake
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Texas Sheet Cake

Prep Time10 mins
Cook Time20 mins
Total Time30 mins
Servings: 16


Cake Ingredients:

  • ½ cup butter
  • ½ cup shortening
  • ¼ cup unsweetened cocoa
  • 1 cup water
  • 2 cups all-purpose flour
  • 2 cups granulated sugar
  • ¼ teaspoon salt
  • 2 eggs
  • ½ cup buttermilk
  • 1 teaspoon baking soda
  • 1 teaspoon cinnamon
  • 1 teaspoon vanilla extract

Frosting Ingredients:

  • ½ cup butter
  • ¼ cup unsweetened cocoa
  • 6 tablespoons milk or cream
  • 1 teaspoon vanilla
  • 3 cups powdered sugar
  • 1 cup chopped walnuts optional


Cake Directions:

  • Lightly coat a 16 x 12 inch baking sheet with non-stick spray for baking.
  • Combine butter, shortening, cocoa, and water in a 2 quart sauce pan, and bring to a boil over medium heat. Stir frequently.
  • Whisk together flour, sugar, and salt.
  • Pour hot cocoa mixture over flour mixture and whisk until smooth.
  • Gently beat eggs, and add them, along with buttermilk, baking soda, cinnamon and vanilla to the cocoa mixture. Whisk just until incorporated—do NOT over-mix. The baking soda and buttermilk will begin to react to create a bubbly leavening, so work quickly.
  • Pour batter into prepared pan, and bake at 400 degrees for 20 minutes.
  • During the last 10 minutes of baking, prepare frosting.

Frosting Directions:

  • In 2-quart pan over low heat, melt butter. Add cocoa and milk (or cream), increase heat to medium high, and stirring constantly, bring to a boil.
  • Remove from heat, and whisk together with powdered sugar and vanilla. Add nuts, if desired.
  • Remove cake from oven, and let rest 3-5 minutes.
  • Gently drizzle frosting over hot can, and carefully spread. Be especially careful if you’re using nuts because they tear into the fragile cake.
  • Cool completely, cut, and serve.