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Slice of texas sheet cake getting pulled out of the pan by a spatula.
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4.91 from 10 votes

The Most Amazing Texas Sheet Cake

The Most Amazing Texas Sheet Cake is light and fluffy with a deliciously decadent cooked frosting on top. Sprinkle on some chopped pecans or walnuts and you have a sheet cake that people will rave over!
Prep Time15 mins
Cook Time25 mins
Total Time40 mins
Course: Dessert
Cuisine: American
Keyword: Texas Sheet Cake
Servings: 15 slices
Calories: 534kcal



  • 2 cups all-purpose flour
  • 2 cups granulated sugar
  • 3/4 cup unsweetened cocoa powder
  • 2 teaspoons baking soda
  • 1 teaspoon salt
  • 2 large eggs
  • 1 cup buttermilk
  • 1 cup warm water
  • 1/3 cup vegetable oil
  • 1 teaspoon vanilla extract


  • 1/2 cup salted butter
  • 1/3 cup unsweetened cocoa powder
  • 1/3 cup buttermilk
  • 3 cups powdered sugar
  • 1 teaspoon vanilla extract
  • 1 cup chopped pecans or walnuts



  • Preheat oven to 350 degrees. Lightly grease a 13x18 inch baking sheet.
  • In a large mixing bowl stir together flour, sugar, cocoa, baking soda, and salt.
  • Add eggs, buttermilk, warm water, oil, and vanilla. Whisk until combined and batter is smooth. This should take just a couple of minutes. Pour batter into prepared baking sheet.
  • Bake for 20-25 minutes until a toothpick inserted into the center comes out clean. Cool on a wire rack for 15 minutes before frosting. 


  • Melt butter in a medium-sized saucepan over low heat. Whisk in cocoa powder, then pour in buttermilk. Increase heat to medium high and bring to a simmer, whisking constantly. 
  • Once the mixture is simmering, remove from the heat and whisk in powdered sugar and vanilla until smooth. Pour over cake to cover. Use a rubber spatula to smooth out and spread if needed. Sprinkle on chopped pecans. Let the cake and frosting cool completely before cutting and serving.



Calories: 534kcal | Carbohydrates: 89g | Protein: 8g | Fat: 20g | Saturated Fat: 10g | Cholesterol: 40mg | Sodium: 396mg | Potassium: 309mg | Fiber: 6g | Sugar: 56g | Vitamin A: 260IU | Vitamin C: 0.1mg | Calcium: 57mg | Iron: 3.7mg