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5 from 1 vote

29 Minute Decadent Chocolate Sheet Cake

Quick to make, easy to eat! Rich chocolate sheet cake.
Course Dessert
Cuisine American
Prep Time 17 minutes
Cook Time 12 minutes
Total Time 29 minutes
Servings 1
Author Allie Taylor - Through Her Looking Glass

Ingredients

  • 2 cups flour
  • 2 cups sugar
  • 1 teaspoon salt
  • 1/2 cup butter
  • 1/2 cup oil
  • 1 cup water
  • 4 tablespoons cocoa
  • 1/2 cup buttermilk
  • 1 teaspoon baking soda
  • 2 eggs
  • 1 teaspoon cinnamon
  • 1 teaspoon vanilla
  • 1/4 cup butter
  • 7 tablespoons milk
  • 4 tablespoons cocoa
  • 4 cups 1 pound Domino confectioners (powdered) sugar

Instructions

  • Cake: Mix together flour, sugar and salt in mixing bowl.
  • Separately, boil 1/2 cup butter with oil, water and 4 tablespoons cocoa.
  • Mix together flour mixture and boiled ingredients with mixer.
  • Add buttermilk, baking soda, eggs, cinnamon and vanilla.
  • Pour batter into greased and floured 10 X 15" jelly roll pan.
  • Bake at 400 degrees for 12 minutes or 'til toothpick comes out clean.
  • Fudgy Chocolate Icing: Melt on low heat, 1/4 cup butter, milk and 4 tablespoons cocoa.
  • Add in powdered sugar.
  • Mix 'til smooth.
  • Pour and spread onto warm cake.
  • Cool.

Notes

Assemble the ingredients before starting.
If you don't have buttermilk on hand, mix 1 1/2 teaspoons vinegar with 1/2 cup milk. Let sit a few minutes. Voila, buttermilk!
Preheat oven before mixing cake batter.
Use a greased and floured 10 X 15" jelly roll pan or line with parchment paper.
Make frosting immediately after cake is out of the oven, then frost.