Texas Sheet Cake Recipe

September 29, 2024

This classic Texas sheet cake is a rich, ultra-moist chocolate dessert baked in a thin layer and topped with smooth, fudgy cocoa frosting.

Made with simple pantry ingredients and enhanced with boiling water for a soft tender crumb, it delivers deep chocolate flavor in every bite.

Perfect for parties, potlucks, or everyday sweet cravings, this easy sheet cake is comforting, crowd-pleasing, and wonderfully indulgent.

Behind the Recipe

Texas sheet cake is a traditional Southern-style American dessert baked in a large shallow pan. The thin cake layer bakes quickly and is topped with warm chocolate frosting that melts slightly into the surface, creating its signature moist texture. Many classic Southern versions include chopped toasted pecans stirred into the warm frosting.

Why You’ll Love This Recipe?

  • Ultra-moist and tender chocolate crumb
  • Easy one-pan baking method
  • Smooth, rich cocoa frosting
  • Perfect for parties and potlucks
  • Simple pantry ingredients

Chef’s Pro Tips for Perfect Results

  • For deeper chocolate flavor, mix cocoa powder with boiling water first before combining with dry ingredients.
  • Do not overbake; sheet cakes cook quickly due to their thin layer.
  • Spread frosting while cake is still warm for classic texture.
  • Sift powdered sugar to ensure lump-free frosting.
  • The frosting should be thin and pourable, not thick like buttercream. It will set into a fudgy layer as the cake cools.

Kitchen Tools You’ll Need

  1. Large mixing bowls
  2. Whisk or electric mixer
  3. Measuring cups and spoons
  4. Rectangular sheet cake pan
  5. Spatula
  6. Saucepan (for frosting)
  7. Oven

Ingredients in This Recipe

  1. 2 cups all-purpose flour, sifted
  2. ½ cup buttermilk or sour cream
  3. 2 cups granulated sugar
  4. 1/2 cup unsweetened cocoa powder (preferably Dutch-processed)
  5. 1 teaspoon baking soda
  6. 1/2 teaspoon salt
  7. 1/2 cup vegetable oil
  8. 2 large eggs, beaten
  9. 2 teaspoons vanilla extract
  10. 1 cup boiling water
  11. 1/2 cup unsalted butter
  12. 2/3 cup milk
  13. 4 cups powdered sugar, sifted
  14. 1/2 cup unsweetened cocoa powder
  15. 1 teaspoon vanilla extract

Ingredient Substitutions

  • Vegetable oil: Melted butter or canola oil can be used.
  • Dutch-processed cocoa: Natural cocoa powder works as an alternative.
  • Milk in frosting: Evaporated milk or plant-based milk can be substituted.
  • Powdered sugar: Fine icing sugar works similarly.

Ingredient Spotlight

  • Cocoa Powder: Provides deep chocolate flavor and rich color.
  • Boiling Water: Helps dissolve cocoa and creates a moist crumb.
  • Vegetable Oil: Keeps the cake soft and tender for longer.
  • Powdered Sugar Frosting: Gives the cake its classic smooth, fudgy topping.

How To Make This Recipe

  1. Preheat oven to 180°C and grease a sheet cake pan.
  2. In a bowl, whisk flour, sugar, cocoa powder, baking soda, and salt.
  3. Add vegetable oil, beaten eggs, and vanilla extract; mix until combined.
  4. Stir in buttermilk or sour cream for extra tenderness and traditional flavor.
  5. Carefully pour in boiling water and stir to form a smooth batter.
  6. Pour batter into the prepared pan and spread evenly.
  7. Bake for 18–22 minutes in a shallow sheet pan OR 22–28 minutes in a deeper 9×13 pan.
  8. Prepare Frosting take a saucepan, melt butter with milk and cocoa powder over medium heat.
  9. Remove from heat and whisk in powdered sugar and vanilla until smooth.
  10. Pour warm frosting over the warm cake and spread evenly.
  11. Allow cake to cool slightly before slicing and serving.

Texas Sheet Cake

This dessert features a moist, fudgy chocolate cake with a tender crumb, baked in a sheet pan for even thickness. The cake is topped with a glossy chocolate frosting that sets to a smooth, velvety finish. It combines simple pantry ingredients with basic baking techniques to create a rich, chocolatey treat.
Prep Time 15 minutes
Cook Time 30 minutes
Total Time 45 minutes
Servings: 12
Course: Main Course
Cuisine: American
Calories: 420

Ingredients
  

  • 2 cups all-purpose flour sifted
  • 2 cups granulated sugar
  • 1/2 cup unsweetened cocoa powder preferably dutch-processed
  • 1 teaspoon baking soda
  • 1/2 teaspoon salt
  • 1/2 cup vegetable oil
  • 2 large eggs beaten
  • 2 teaspoons vanilla extract
  • 1 cup boiling water
  • 1/2 cup unsalted butter for frosting
  • 2/3 cup milk for frosting
  • 4 cups powdered sugar sifted
  • 1/2 cup unsweetened cocoa powder for frosting
  • 1 teaspoon vanilla extract for frosting

Equipment

  • Mixing Bowls
  • Saucepan
  • Baking sheet
  • Whisk

Method
 

  1. Preheat the oven to 350°F (175°C). Lightly grease a 9×13-inch baking sheet and set aside.
  2. In a large mixing bowl, whisk together the sifted flour, sugar, cocoa powder, baking soda, and salt until well combined.
    2 cups all-purpose flour
  3. In a saucepan over medium heat, combine vegetable oil, eggs, and vanilla extract. Stir until the mixture is smooth and heated through, about 2 minutes.
    2 cups all-purpose flour
  4. Pour the hot mixture over the dry ingredients and stir to combine. Carefully add boiling water, mixing slowly to avoid splashing, until the batter is smooth and thin.
    2 cups all-purpose flour
  5. Pour the batter into the prepared baking sheet, spreading evenly. Bake for 30 minutes or until a toothpick inserted into the center comes out with moist crumbs. Allow to cool before frosting.
  6. While the cake cools, make the frosting by melting butter and mixing it with powdered sugar, cocoa powder, vanilla, and milk until smooth and creamy. Spread the frosting evenly over the cooled cake and let set before serving.
    2 cups all-purpose flour

You Can Also Try Out Other Recipes

Make-Ahead and Storage Tips

  • Store at cool room temperature 1–2 days, or refrigerate up to 5 days.
  • Refrigerate for up to 5 days for extended freshness.
  • Bring to room temperature before serving for best texture.

How to Serve This Dish

Serve slightly warm or at room temperature.
Pair with vanilla ice cream or whipped cream for a richer dessert.

Additional Tips

  • Avoid overmixing batter to keep cake tender.
  • Use parchment lining for easy removal.
  • Let frosting set before cutting neat slices.

Creative Leftover Transformations

  • Crumble into ice cream sundaes or parfait layers.
  • Use cubes as base for chocolate trifle dessert.
  • Toast slices lightly for a fudgy snack.

Make It a Showstopper

  • Sprinkle toasted pecans or walnuts on frosting.
  • Dust lightly with cocoa powder for bakery finish.
  • Serve on a large platter for party presentation.

Variations to Try

  • Nutty Version: Add chopped pecans to frosting.
  • Mocha Flavor: Add instant coffee powder to batter.
  • Extra Chocolate: Mix in chocolate chips.

FAQs

  1. Why is Texas sheet cake thin? It is traditionally baked in a shallow pan for quick baking and moist texture.
  2. Can I make Texas sheet cake ahead of time? Yes, you can bake it a day in advance and store it covered. The cake becomes even more moist and flavorful the next day.
  3. Can I make it eggless? Use yogurt or commercial egg replacer for similar structure.
  4. How do I make frosting thicker? Add more powdered sugar gradually.
  5. Can I freeze this cake? Yes, freeze slices tightly wrapped for up to 1 month.
  6. Can I use a round cake pan? Yes, but baking time may increase due to thickness.
  7. Can I make Texas sheet cake ahead of time for an event? Yes, you can bake it a day in advance and keep it covered at room temperature.
  8. Why is my frosting grainy instead of smooth? This can happen if powdered sugar is not sifted or frosting is overcooked.
  9. Can I reduce the sugar in this recipe? Slightly reducing sugar is possible, but it may affect the cake’s moisture and classic taste.
  10. How do I cut neat slices of sheet cake? Let the frosting set completely and use a sharp knife wiped clean between cuts.

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