Indulge in the rich, chocolatey goodness of a classic Texas sheet cake. This beloved dessert is known for its moist texture and decadent frosting, making it a favorite for gatherings and celebrations. Simple to prepare and absolutely delicious, it's a treat that will satisfy any sweet tooth.
When preparing this recipe, you might need to pick up a few items that aren't always in your pantry. Buttermilk is a key ingredient that adds a tangy flavor and tender texture to the cake. If you don't have Unsweetened Cocoa Powder on hand, make sure to grab some for both the cake and the frosting. Additionally, Powdered Sugar is essential for achieving the smooth, sweet frosting that tops this delightful dessert.

Ingredients for Texas Sheet Cake
All-purpose flour: The base of the cake, providing structure and texture.
Sugar: Adds sweetness and helps to create a tender crumb.
Unsalted butter: Adds richness and moisture to the cake and frosting.
Water: Helps to dissolve the cocoa powder and create a smooth batter.
Unsweetened cocoa powder: Provides the chocolate flavor for both the cake and frosting.
Buttermilk: Adds tanginess and helps to tenderize the cake.
Eggs: Bind the ingredients together and add structure.
Baking soda: Leavening agent that helps the cake rise.
Vanilla extract: Adds a warm, sweet flavor to both the cake and frosting.
Salt: Enhances the flavors of the other ingredients.
Milk: Used in the frosting to create a smooth, spreadable consistency.
Powdered sugar: Sweetens and thickens the frosting.
Technique Tip for This Recipe
When making the frosting for the Texas sheet cake, ensure that the powdered sugar is sifted before adding it to the cocoa mixture. This will help prevent any lumps and result in a smoother, more velvety frosting. Additionally, pour the frosting over the cake while it is still warm to allow it to spread more easily and create a glossy finish.
Suggested Side Dishes
Alternative Ingredients
all-purpose flour - Substitute with whole wheat flour: Whole wheat flour adds a nutty flavor and increases the fiber content.
sugar - Substitute with coconut sugar: Coconut sugar has a lower glycemic index and adds a slight caramel flavor.
unsalted butter - Substitute with coconut oil: Coconut oil provides a dairy-free option and adds a subtle coconut flavor.
water - Substitute with coffee: Coffee enhances the chocolate flavor in the cake.
unsweetened cocoa powder - Substitute with carob powder: Carob powder is caffeine-free and has a naturally sweet flavor.
buttermilk - Substitute with plain yogurt: Plain yogurt provides the same tangy flavor and acidity needed for leavening.
large eggs - Substitute with flax eggs: Flax eggs are a vegan alternative made by mixing ground flaxseed with water.
baking soda - Substitute with baking powder: Use three times the amount of baking powder, but it may slightly alter the texture.
vanilla extract - Substitute with almond extract: Almond extract provides a different but complementary flavor profile.
salt - Substitute with sea salt: Sea salt has a more complex flavor and can enhance the overall taste.
powdered sugar - Substitute with coconut sugar: Blend coconut sugar to make it fine and use as a lower glycemic index option.
milk - Substitute with almond milk: Almond milk is a dairy-free alternative that works well in baking.
Other Alternative Recipes Similar to This Cake
How to Store / Freeze This Cake
Allow the Texas sheet cake to cool completely before storing. This helps prevent condensation, which can make the cake soggy.
For short-term storage, cover the cake tightly with plastic wrap or aluminum foil. Alternatively, you can store it in an airtight container to maintain its freshness.
If you plan to enjoy the cake within a few days, keep it at room temperature. The frosting will stay soft and the cake will remain moist.
For longer storage, place the cake in the refrigerator. This will keep it fresh for up to a week. Make sure it's well-covered to prevent it from drying out or absorbing other odors from the fridge.
To freeze the Texas sheet cake, first ensure it is completely cooled. Cut the cake into individual portions for easier thawing and serving later.
Wrap each piece tightly in plastic wrap, then place them in a freezer-safe bag or container. This double layer of protection helps prevent freezer burn and preserves the cake's texture and flavor.
Label the container with the date so you can keep track of how long it has been stored. The cake can be frozen for up to three months without significant loss of quality.
When you're ready to enjoy the frozen cake, remove the desired portions from the freezer and let them thaw at room temperature. This usually takes a few hours, depending on the size of the pieces.
For a quicker thaw, you can place the wrapped cake portions in the refrigerator overnight. This gradual thawing process helps maintain the cake's moisture and texture.
Once thawed, you can enjoy the Texas sheet cake as is, or warm it slightly in the microwave for a few seconds to enhance its gooey, chocolatey goodness.
How to Reheat Leftovers
Preheat your oven to 300°F (150°C). Place the Texas sheet cake on a baking sheet and cover it loosely with aluminum foil to prevent it from drying out. Heat for about 10-15 minutes or until warmed through.
For a quicker method, use the microwave. Place a slice of Texas sheet cake on a microwave-safe plate. Cover it with a damp paper towel to retain moisture. Microwave on medium power for 20-30 seconds, checking to ensure it doesn't overheat.
If you prefer a stovetop method, use a skillet. Heat a non-stick skillet over low heat. Place a slice of Texas sheet cake in the skillet and cover it with a lid. Heat for about 2-3 minutes on each side, or until warmed through.
For an air fryer, preheat it to 300°F (150°C). Place the Texas sheet cake slice in the air fryer basket. Heat for about 3-5 minutes, checking frequently to ensure it doesn't overcook.
To reheat multiple slices, use a steamer. Place the Texas sheet cake slices on a heatproof plate and set it in the steamer basket. Steam for about 5 minutes or until heated through, ensuring the cake remains moist.
Best Tools for Baking This Cake
Oven: Preheat to 350°F (175°C) to bake the cake.
Sheet pan: Grease this to pour the cake batter into and bake.
Mixing bowl: Combine flour and sugar in this.
Saucepan: Melt butter, add water and cocoa powder, and bring to a boil for the cake mixture. Also used for making the frosting.
Whisk: Mix the ingredients together smoothly.
Spatula: Stir the cocoa mixture into the flour mixture and later spread the frosting.
Measuring cups: Measure out the flour, sugar, butter, water, cocoa powder, buttermilk, and milk.
Measuring spoons: Measure out the baking soda, vanilla extract, and salt.
Toothpick: Check if the cake is done by inserting it into the center.
Cooling rack: Place the sheet pan on this to cool the cake before serving.
How to Save Time on Making This Cake
Pre-measure ingredients: Measure and prepare all ingredients before starting. This will streamline your process and prevent any last-minute scrambling.
Use a stand mixer: A stand mixer can save time and effort when combining the batter and frosting ingredients.
Simultaneous tasks: While the cake is baking, prepare the frosting to maximize efficiency.
Room temperature ingredients: Ensure butter and eggs are at room temperature for easier mixing and better texture.
Sheet pan size: Use the correct sheet pan size to ensure even baking and avoid overflows.

Texas Sheet Cake
Ingredients
Cake
- 2 cups all-purpose flour
- 2 cups sugar
- 1 cup butter unsalted
- 1 cup water
- ¼ cup unsweetened cocoa powder
- ½ cup buttermilk
- 2 large eggs
- 1 teaspoon baking soda
- 1 teaspoon vanilla extract
- ¼ teaspoon salt
Frosting
- ½ cup butter unsalted
- ¼ cup unsweetened cocoa powder
- ¼ cup milk
- 3 ½ cups powdered sugar
- 1 teaspoon vanilla extract
Instructions
- Preheat your oven to 350°F (175°C). Grease a sheet pan.
- In a mixing bowl, combine flour and sugar. Set aside.
- In a saucepan, melt butter. Add water and cocoa powder. Bring to a boil, then remove from heat.
- Pour the cocoa mixture over the flour mixture and stir to combine.
- Add buttermilk, eggs, baking soda, vanilla extract, and salt. Mix well.
- Pour the batter into the prepared sheet pan. Bake for 20 minutes or until a toothpick inserted into the center comes out clean.
- While the cake is baking, prepare the frosting. In a saucepan, melt butter. Add cocoa powder and milk. Bring to a boil, then remove from heat.
- Stir in powdered sugar and vanilla extract until smooth.
- Pour the frosting over the warm cake. Let it cool before serving.
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