Chocolate Buttermilk Texas Sheet Cake

Chocolate Buttermilk Texas Sheet Cake

Dessert
35 min
24 servings
298 kcal / serving

This chocolate buttermilk texas sheet cake is a moist, fudgy chocolate cake topped with a sweet chocolate frosting. You make this cake on a cookie sheet, so it's perfect for feeding a crowd.

Ingredients

  • 1 cupsalted butter
  • 1 cupwater
  • ¼ cupcocoa powder
  • 2 cupsgranulated sugar
  • 2 cupsall-purpose flour
  • 1 teaspoonbaking soda
  • ½ teaspoonsalt
  • 2 largeeggs (room temperature)
  • ½ cupbuttermilk (room temperature)
  • 1 teaspoonvanilla extract
  • ½ cupsalted butter
  • 6 tablespoonsmilk
  • ¼ cupcocoa powder
  • 1 teaspoonvanilla
  • salt
  • 4 cupspowdered sugar

Directions

  1. 1

    Preheat oven to 350 F and grease a cookie sheet pan (13×18''). Set aside.

  2. 2

    Add butter, water and cocoa powder to a small saucepan over medium heat. Bring mixture to a boil over medium heat.

  3. 3

    In a large bowl whisk together the sugar, flour, baking soda and salt. As soon as butter/cocoa mixture comes to a boil remove from heat and pour over the dry ingredients. Whisk together until all combined.

  4. 4

    In a measuring cup or small bowl whisk the eggs, buttermilk and vanilla. Mix into the cake batter.

  5. 5

    Pour batter into prepared pan. Bake for 17-22 minutes, or until edges are pulling away. When there is about 7-10 minutes left before the cake is done baking, start the chocolate frosting.

  6. 6

    Add butter, cocoa powder and milk to the same small saucepan and bring to a boil over medium heat. Remove from heat and pour into a medium mixing bowl with vanilla, pinch of salt and powdered sugar. I like to mix with electric beaters on low to make sure it's smooth.

  7. 7

    Pour frosting over cake after it's cooled for 3-5 minutes, and use a spatula to spread evenly over the cake. The cake needs to be warm enough that the frosting can spread easily over the cake.