The BEST Texas Sheet Cake

This classic Texas Sheet Cake is rich, moist, and topped with a luscious warm chocolate frosting that melts into the cake. Made with simple pantry ingredients, it’s the perfect dessert for parties, potlucks, or any time you’re craving homemade chocolate cake.

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Ingredients

For the Cake:

• 1 cup water (240 ml)
• 1 cup butter (227 g)
• 3 tablespoons unsweetened cocoa powder (22.5 g)
• 2 cups all-purpose flour (240 g)
• 2 cups granulated sugar (400 g)
• 1 teaspoon baking soda (5 g)
• ½ teaspoon salt (2.5 g)
• ½ cup sour cream (120 g)
• 2 large eggs
• 1 teaspoon vanilla extract (5 ml)

For the Frosting:

• 6 tablespoons milk (90 ml)
• 3 tablespoons unsweetened cocoa powder (22.5 g)
• ½ cup butter (115 g)
• 3¾ cups powdered sugar (450 g)

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Instructions

1. Preheat the Oven
Preheat your oven to 350°F (175°C). Grease an 18×13-inch sheet pan (jelly roll pan) and set aside.

2. Prepare the Chocolate Mixture
In a medium saucepan over medium heat, combine water, butter, and cocoa powder. Bring to a gentle boil, stirring occasionally.

3. Mix the Dry Ingredients
In a large bowl, whisk together flour, sugar, baking soda, and salt until evenly combined.

4. Combine Wet Ingredients
In a separate small bowl, whisk together sour cream, eggs, and vanilla extract. Add this mixture to the dry ingredients and stir until just combined.

5. Add the Chocolate Mixture
Once the chocolate mixture has come to a boil, remove it from heat and pour it into the batter. Stir until smooth and well combined with no lumps remaining.

6. Bake the Cake
Pour the batter into the prepared pan and spread it evenly with a spatula. Bake for 15–20 minutes, or until the cake is set and a toothpick inserted in the center comes out clean.

7. Make the Frosting
When the cake is halfway through baking, start the frosting. In a saucepan, combine milk, cocoa powder, and butter. Bring the mixture to a boil, then remove from heat. Stir in powdered sugar and whisk (or beat with a hand mixer) until smooth and lump-free.

8. Frost While Warm
Pour the hot frosting over the warm cake and spread it evenly with a spatula. Allow the frosting to set for about 10 minutes before slicing. Serve warm or at room temperature.

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Why You’ll Love This Recipe

• Moist and rich with a deep chocolate flavor.
• Quick and easy—ready in under an hour.
• Perfect for serving a crowd or taking to a potluck.
• Uses simple ingredients you likely already have on hand.

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Tips

• Don’t overbake—the cake should stay soft and moist.
• Use good-quality cocoa powder for the best flavor.
• The frosting should be poured while both the cake and frosting are warm for that signature glossy finish.
• For a little crunch, sprinkle chopped pecans or walnuts on top before the frosting sets.

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Variations and Substitutions

• Add nuts: Fold ½ cup of chopped pecans or walnuts into the batter or sprinkle on top of the frosting.
• Make it spicier: Add a pinch of cinnamon or cayenne pepper for a Mexican chocolate twist.
• Use buttermilk: Substitute sour cream with buttermilk for a slightly tangier flavor.
• Frosting twist: Add a teaspoon of espresso powder to the frosting for a mocha version.

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FAQs

Can I make this cake ahead of time?
Yes! You can bake it up to one day in advance. Store covered at room temperature or refrigerate for up to 3 days.

Can I freeze Texas Sheet Cake?
Absolutely. Freeze the fully cooled cake (sliced or whole) for up to 2 months. Thaw at room temperature before serving.

Why is it called a “sheet cake”?
Because it’s baked in a large sheet pan rather than a traditional cake pan—perfect for feeding a crowd.

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Serving and Suggestions

Serve this Texas Sheet Cake warm with a scoop of vanilla ice cream or a drizzle of caramel sauce. It pairs wonderfully with coffee or milk and makes a show-stopping dessert for birthdays, BBQs, holidays, and potlucks.