Texas Sheet Cake Recipe

A gloriously fudgy, oversized chocolate cake with warm chocolate frosting poured over the top while still hot, creating an irresistible melt-in-your-mouth texture that feeds a crowd.
Difficulty:
Beginner
Prep Time:
15 mins
Cook Time:
20 mins
Serves:
1 cake (24 slices)
An overhead shot of a rectangular dark chocolate sheet cake on a rustic wooden serving board, with one corner piece cut to reveal the moist, dense crumb. The cake is covered with a glossy, slightly set chocolate frosting that drips slightly over the edges, and topped with a scattering of toasted pecans. Natural window light highlights the sheen of the frosting, while a vintage cake server rests nearby alongside small plates with slices. The rich dark brown of the cake contrasts beautifully with the serving board, and a few pecan halves are artfully scattered around the display.

Ingredients

<ul class="ingredients-main-list"><li class="ingredients-single-item">For the cake:</li><li class="ingredients-single-item">240g all-purpose flour</li><li class="ingredients-single-item">400g granulated sugar</li><li class="ingredients-single-item">1/2 tsp salt</li><li class="ingredients-single-item">225g unsalted butter</li><li class="ingredients-single-item">60g unsweetened cocoa powder</li><li class="ingredients-single-item">240ml water</li><li class="ingredients-single-item">120ml buttermilk (or 120ml milk with 1 tbsp lemon juice)</li><li class="ingredients-single-item">2 large eggs, room temperature</li><li class="ingredients-single-item">1 tsp vanilla extract</li><li class="ingredients-single-item">1 tsp baking soda</li><li class="ingredients-single-item">For the frosting:</li><li class="ingredients-single-item">115g unsalted butter</li><li class="ingredients-single-item">30g unsweetened cocoa powder</li><li class="ingredients-single-item">80ml milk</li><li class="ingredients-single-item">1 tsp vanilla extract</li><li class="ingredients-single-item">450g powdered sugar</li><li class="ingredients-single-item">120g chopped pecans (optional)</li></ul>

Equipment

<ul class="equipment-main-list"><li class="equipment-single-item">33 x 23 cm (13 x 9 inch) baking pan</li><li class="equipment-single-item">Medium saucepan</li><li class="equipment-single-item">Heat-resistant spatula</li></ul>
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Directions

<ol class="no-list-style"><li class="MethodStepper"><h4 class="step-title">Step 1</h4>Preheat your oven to 180°C (350°F) and lightly grease a 33 x 23 cm (13 x 9 inch) baking pan. This large pan is what gives the Texas Sheet Cake its characteristic thin profile, perfect for that ideal cake-to-frosting ratio.</li><li class="MethodStepper"><h4 class="step-title">Step 2</h4>In a large bowl, whisk together the flour, sugar, and salt until well combined, then set aside. This pre-mixing of dry ingredients ensures they'll incorporate evenly into the wet mixture later, preventing flour pockets in your finished cake.</li><li class="MethodStepper"><h4 class="step-title">Step 3</h4>In a medium saucepan over medium heat, combine the butter, cocoa powder, and water. Stir constantly until the butter is completely melted and the mixture comes to a gentle boil. The heat helps bloom the cocoa, intensifying its chocolate flavor. Remove from heat immediately once it reaches a boil.</li><li class="MethodStepper"><h4 class="step-title">Step 4</h4>Pour the hot chocolate mixture over the flour mixture and stir until just combined. The heat from the chocolate mixture will begin to activate the leavening agents, so work efficiently but don't overmix, which can develop gluten and toughen the cake.</li><li class="MethodStepper"><h4 class="step-title">Step 5</h4>In a small bowl, whisk together the buttermilk, eggs, vanilla, and baking soda until smooth. The acidity in the buttermilk works with the baking soda to create a tender crumb and help the cake rise properly. Pour this mixture into the batter and stir until just combined and no visible flour streaks remain.</li><li class="MethodStepper"><h4 class="step-title">Step 6</h4>Pour the batter into your prepared pan, spreading it evenly with a spatula. The batter will be thinner than traditional cake batters – this is exactly right and contributes to the cake's signature texture.</li><li class="MethodStepper"><h4 class="step-title">Step 7</h4>Bake for 18-20 minutes, or until a toothpick inserted in the center comes out with a few moist crumbs (but no wet batter). Be careful not to overbake – this cake is meant to have a fudgy, moist texture. Begin preparing your frosting about 5 minutes before the cake is done.</li><li class="MethodStepper"><h4 class="step-title">Step 8</h4>For the frosting, combine butter, cocoa powder, and milk in a medium saucepan over medium heat. Bring to a boil, stirring constantly, then remove from heat. The boiling ensures the cocoa powder fully blooms for maximum chocolate flavor.</li><li class="MethodStepper"><h4 class="step-title">Step 9</h4>Add the vanilla and powdered sugar to the hot mixture, whisking vigorously until smooth. If the frosting seems too thick, add a tablespoon of milk at a time until it reaches a pourable consistency. If using pecans, stir them in now (reserve a few for garnish if desired).</li><li class="MethodStepper"><h4 class="step-title">Step 10</h4>Pour the hot frosting over the hot cake immediately after it comes out of the oven. This is the signature technique of Texas Sheet Cake – the hot frosting partially melds with the hot cake, creating that characteristic fudgy layer between cake and frosting. Spread quickly with a spatula to ensure even coverage before the frosting begins to set.</li><li class="MethodStepper"><h4 class="step-title">Step 11</h4>Allow the cake to cool completely at room temperature, about 1-2 hours. The frosting will set to a soft, fudgy finish that's the hallmark of a proper Texas Sheet Cake. For cleanest slices, use a knife dipped in hot water and wiped clean between cuts.</li><li class="MethodStepper"><h4 class="step-title">Step 12</h4>Cut into squares and serve. This cake stays wonderfully moist for several days stored in an airtight container at room temperature. For longer storage, cover tightly and refrigerate for up to a week, bringing to room temperature before serving for the best texture and flavor.</li></ol>

Nutrition Facts (per serving)

🍽️ Serving Size: 1 slice
🔥 Calories: 325 calories
🥑 Fat: 16 g
🧈 Saturated Fat: 8 g
🍞 Carbohydrates: 45 g
🍭 Sugar: 32 g
🍗 Protein: 3 g
🫀 Cholesterol: 55 mg
🧂 Sodium: 180 mg

Chef’s Notes

A few helpful details for making this recipe.

Why is pouring the frosting while the cake is still hot so important?

Pouring hot frosting over hot cake is the signature technique that creates Texas Sheet Cake's distinctive texture. This method allows the frosting to partially meld with the cake surface, creating a fudgy transitional layer between cake and frosting that can't be achieved once the cake cools.

Can I make this chocolate sheet cake without buttermilk?

Yes! If you don't have buttermilk, make a quick substitute by adding 1 tablespoon of lemon juice to 120ml regular milk and letting it sit for 5 minutes. This creates the acidity needed to react with the baking soda for proper rise and tender crumb in your sheet cake.

What makes this dessert specifically a "Texas" sheet cake?

The "Texas" in this sheet cake refers to its size—everything's bigger in Texas! The defining characteristics are its thin profile baked in a large sheet pan, the method of pouring hot fudge frosting over hot cake, and traditionally including pecans (Texas's state tree) in the topping.

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