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A Texas sheet cake in the pan and cut into slices with one missing.
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5 from 12 votes

Small-Batch Texas Sheet Cake

Course Sweets & Dessert
Cuisine American
Prep Time 15 minutes
Cook Time 15 minutes
Total Time 30 minutes
Servings 12 slices
Calories 206kcal
Author Kristine Underwood

Ingredients

For the cake:
  • 1 cup flour (all-purpose)
  • 1/2 cup sugar
  • 3 TBS unsweetened cocoa powder
  • 1/8 tsp sea salt
  • 1/2 tsp baking soda
  • 1/2 cup butter, melted
  • 1 egg
  • 1 tsp vanilla
  • 1/4 cup buttermilk
  • 1/2 cup water
For the frosting:
  • 6 TBS unsalted butter
  • 3 TBS cocoa powder
  • 3 TBS buttermilk
  • 1 tsp vanilla
  • 1/8 tsp sea salt
  • 2 cups powdered sugar

Instructions

For the cake:
  • Lightly spray a quarter sheet pan with nonstick cooking spray and preheat your oven to 350 degrees.
  • In a large bowl whisk together flour, sugar, cocoa powder, salt, and baking soda and set it aside.
  • In a microwavable measuring cup, melt butter in the microwave in 30 second intervals until fully melted. Let cool slightly.
  • Whisk the egg, vanilla, buttermilk, and water into the melted butter until smooth.
  • Pour the wet ingredients into the dry ingredients and mix until an even cake batter forms.
  • Pour cake batter into the prepared quarter sheet pan.
  • Bake Texas sheet cake for for 15-16 minutes at 350 degrees, until a toothpick inserted in the center comes out clean.
For the frosting:
  • While the cake is baking, in a medium saucepan, melt butter over medium heat.
  • Whisk in the cocoa powder, buttermilk, vanilla and salt and mix until smooth.
  • Remove frosting from heat and whisk in powdered sugar.
  • If you're adding chopped nuts, fold them in.
  • When the cake comes out of the oven, immediately pour the frosting over cake and spread it around using a rubber spatula or the back of a large spoon.
  • Let the Texas sheet cake cool for at least 30 minutes prior to slicing into 12 pieces and serving.
Notes
*For a crunchier frosting, stir in 1/4 cup finely chopped pecans  or walnuts before pouring frosting onto cake.
**The nutritional information above does not include nuts.
Nutrition
Serving: 1 slice | Calories: 206kcal | Carbohydrates: 39g | Protein: 2g | Fat: 14g | Saturated Fat: 9g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 4g | Trans Fat: 1g | Cholesterol: 50mg | Sodium: 171mg | Potassium: 71mg | Fiber: 1g | Sugar: 9g | Vitamin A: 446IU | Calcium: 21mg | Iron: 1mg