5 from 7 votes
Square slice of Texas sheet cake on a small white plate with a fork.
The BEST Texas Sheet Cake
Prep Time
10 mins
Cook Time
15 mins
Total Time
30 mins

The best (and easiest) Texas Sheet Cake is an amazing chocolate cake recipe made in a jelly roll pan and covered in warm chocolate frosting.

Course: Dessert
Cuisine: American
Unit: cup, large, Tablespoon, teaspoon
Servings: 15 people
Calories: 475 kcal
Author: Lauren Allen
  • 1 cup water
  • 1 cup butter (2 sticks)
  • 3 Tablespoons unsweetened cocoa powder
  • 2 cups all-purpose flour
  • 2 cups granulated sugar
  • 1 teaspoon baking soda
  • 1/2 teaspoon salt
  • 1/2 cup sour cream
  • 2 large eggs
  • 1 teaspoon vanilla extract
For the Frosting
  • 6 Tablespoons milk
  • 3 Tablespoons unsweetened cocoa powder
  • 1/2 cup butter (1 stick)
  • 3 3/4 cups powdered sugar
  1. Preheat oven to 350 degrees F and grease a jelly roll (10''x15'') pan.

  2. Add water butter cocoa powder to a medium saucepan over medium heat. Bring mixture to a boil.

  3. Meanwhile, in a separate bowl mix together the flour, sugar baking soda and salt. 

  4. In another small bowl mix together the sour cream, eggs and vanilla. 

  5. Add sour cream/egg mixture to the flour mixture and mix until combined. 

  6. Once the chocolate mixture in the saucepan in boiling, remove it from heat and pour it into the batter. Mix until combined and no lumps remain.

  7. Pour mixture into prepared pan and smooth with a spatula to make sure it is dispersed in an even layer.

  8.  Bake in preheated oven for 15-20 minutes or until set (mine is usually done around 15 minutes).

  9. When the cake is about half-way through cooking, prepare the frosting.
For the Chocolate Sheet Cake Frosting
  1. Add milk, cocoa and butter to a saucepan. Bring mixture to a boil. 

  2. Once boiling, stir in powdered sugar. I like to beat the mixture with my hand-held mixer to get rid of any lumps. 

  3. Pour hot icing over hot cake. Use a spatula to spread it evenly over the cake. Allow frosting to set for about 10 minutes before eating.

Recipe Notes

You can store any extra cake covered, in an air-tight container for 2-3 days.

Nutrition Facts
The BEST Texas Sheet Cake
Amount Per Serving
Calories 475 Calories from Fat 189
% Daily Value*
Total Fat 21g 32%
Saturated Fat 13g 65%
Cholesterol 75mg 25%
Sodium 343mg 14%
Potassium 81mg 2%
Total Carbohydrates 71g 24%
Dietary Fiber 1g 4%
Sugars 56g
Protein 3g 6%
Vitamin A 13.1%
Vitamin C 0.1%
Calcium 2.9%
Iron 6.8%
* Percent Daily Values are based on a 2000 calorie diet.