This Gluten-Free Texas Sheet Cake is a delightful twist on a classic dessert, perfect for those who need to avoid gluten. It's rich, moist, and topped with a luscious chocolate frosting that will satisfy any sweet tooth. Whether you're serving it at a party or enjoying it as a treat at home, this cake is sure to be a hit.
When preparing this recipe, you might need to pick up a few items that aren't always in your pantry. Gluten-free all-purpose flour is essential for keeping the cake free from gluten. Buttermilk adds a tangy flavor and moisture to the cake, while unsweetened cocoa powder is crucial for that rich chocolate taste. Make sure you have powdered sugar on hand for the frosting.

Ingredients For Gluten-Free Texas Sheet Cake
Gluten-free all-purpose flour: A blend of flours that do not contain gluten, essential for making the cake suitable for those with gluten intolerance.
Sugar: Adds sweetness to the cake and helps with the texture.
Unsalted butter: Provides richness and moisture to the cake and frosting.
Water: Used to help melt the butter and mix with the cocoa powder.
Buttermilk: Adds a tangy flavor and helps keep the cake moist.
Beaten eggs: Help bind the ingredients together and provide structure to the cake.
Baking soda: A leavening agent that helps the cake rise.
Vanilla extract: Adds a depth of flavor to both the cake and the frosting.
Unsweetened cocoa powder: Provides the rich chocolate flavor in both the cake and the frosting.
Milk: Used in the frosting to achieve the right consistency.
Powdered sugar: Sweetens and thickens the frosting.
Technique Tip for This Recipe
When making the frosting for this gluten-free Texas sheet cake, ensure that the powdered sugar is sifted before adding it to the butter and cocoa powder mixture. This will help prevent any lumps and create a smoother, more velvety texture. Additionally, pour the frosting over the cake while both are still warm to allow the frosting to spread more easily and seep into the cake, enhancing its moistness and flavor.
Suggested Side Dishes
Alternative Ingredients
gluten-free all-purpose flour - Substitute with almond flour: Almond flour provides a nutty flavor and is naturally gluten-free, making it a great alternative.
gluten-free all-purpose flour - Substitute with coconut flour: Coconut flour is another gluten-free option that adds a subtle coconut flavor and is high in fiber.
sugar - Substitute with coconut sugar: Coconut sugar has a lower glycemic index and adds a caramel-like flavor.
unsalted butter - Substitute with coconut oil: Coconut oil is a dairy-free alternative that adds a slight coconut flavor and is solid at room temperature.
unsalted butter - Substitute with vegan butter: Vegan butter is a plant-based alternative that mimics the texture and flavor of regular butter.
buttermilk - Substitute with almond milk with lemon juice: Mix almond milk with a tablespoon of lemon juice to create a dairy-free buttermilk substitute.
buttermilk - Substitute with coconut milk with apple cider vinegar: Combine coconut milk with a tablespoon of apple cider vinegar to achieve a similar tangy effect.
eggs - Substitute with flax eggs: Mix 1 tablespoon of ground flaxseed with 3 tablespoons of water per egg to create a vegan egg substitute.
eggs - Substitute with chia eggs: Mix 1 tablespoon of chia seeds with 3 tablespoons of water per egg to create a gel-like vegan egg substitute.
baking soda - Substitute with baking powder: Use 3 times the amount of baking powder, but reduce or eliminate any acidic ingredients in the recipe.
vanilla extract - Substitute with almond extract: Almond extract provides a different but pleasant flavor profile.
unsweetened cocoa powder - Substitute with carob powder: Carob powder is naturally sweet and caffeine-free, making it a good alternative.
milk - Substitute with oat milk: Oat milk is a creamy, dairy-free alternative that works well in baking.
powdered sugar - Substitute with coconut sugar blended into powder: Blend coconut sugar until it reaches a powdered consistency for a less processed alternative.
Other Alternative Recipes Similar to This Cake
How To Store / Freeze This Cake
- Allow the cake to cool completely before storing. This helps prevent condensation, which can make the cake soggy.
- Once cooled, cut the cake into individual servings. This makes it easier to grab a piece whenever you want without exposing the entire cake to air.
- Place the cake pieces in an airtight container. If you need to stack them, place a piece of parchment paper between layers to prevent sticking.
- Store the container in the refrigerator if you plan to consume the cake within a week. The cool temperature helps maintain the cake's moisture and flavor.
- For longer storage, wrap each piece of cake tightly in plastic wrap, then place them in a freezer-safe bag or container. This double layer of protection helps prevent freezer burn.
- Label the container with the date so you can keep track of how long the cake has been stored. Frozen cake can last up to three months.
- When ready to enjoy, thaw the cake pieces in the refrigerator overnight. For a quicker option, you can let them sit at room temperature for a few hours.
- To refresh the cake, you can warm it slightly in the microwave for about 10-15 seconds. This will help restore its soft texture and enhance the chocolate flavor.
- If the frosting has hardened, you can make a quick glaze by mixing a small amount of powdered sugar with milk and drizzling it over the cake before serving.
How To Reheat Leftovers
Oven Method:
- Preheat your oven to 300°F (150°C).
- Place the leftover Texas sheet cake on a baking sheet.
- Cover the cake with aluminum foil to prevent it from drying out.
- Heat for about 10-15 minutes, or until the cake is warmed through.
- Remove the foil for the last 2-3 minutes if you want a slightly crisp top.
Microwave Method:
- Cut a slice of the Texas sheet cake and place it on a microwave-safe plate.
- Cover the cake slice with a damp paper towel to keep it moist.
- Microwave on medium power for 20-30 seconds.
- Check the temperature and heat in additional 10-second intervals if needed.
Stovetop Steaming Method:
- Place a steamer basket in a pot with a small amount of water.
- Bring the water to a gentle simmer.
- Place the Texas sheet cake on a heatproof plate and set it in the steamer basket.
- Cover the pot and steam for about 5-7 minutes, or until the cake is warmed through.
Air Fryer Method:
- Preheat your air fryer to 300°F (150°C).
- Place the leftover Texas sheet cake in the air fryer basket.
- Heat for about 5-7 minutes, checking halfway through to ensure it doesn't dry out.
Toaster Oven Method:
- Preheat your toaster oven to 300°F (150°C).
- Place the Texas sheet cake on a toaster oven tray.
- Cover with aluminum foil to keep it moist.
- Heat for about 10-12 minutes, removing the foil for the last 2-3 minutes if you prefer a slightly crisp top.
Best Tools for This Recipe
Oven: Used to bake the cake at a consistent temperature of 350°F (175°C).
Baking sheet: A flat, rectangular pan used to bake the cake evenly.
Mixing bowl: A large bowl used to combine the gluten-free flour and sugar.
Saucepan: Used to melt the butter, add water, and bring the mixture to a boil. Also used to prepare the frosting.
Whisk: Used to beat the eggs and mix the ingredients until smooth.
Spatula: Used to spread the batter evenly in the baking sheet and to stir the frosting.
Measuring cups: Used to measure out the flour, sugar, buttermilk, and other ingredients accurately.
Measuring spoons: Used to measure out smaller quantities of ingredients like baking soda and vanilla extract.
Toothpick: Used to check if the cake is done by inserting it into the center of the cake.
Cooling rack: Used to cool the cake after pouring the frosting over it.
How to Save Time on Making This Cake
Pre-measure ingredients: Measure and prepare all ingredients ahead of time to streamline the cooking process.
Use a stand mixer: A stand mixer can quickly and efficiently combine your batter ingredients, saving you time and effort.
Melt butter in microwave: Use the microwave to melt butter instead of a saucepan to speed up the process.
Prepare frosting while baking: Make the frosting while the cake is baking to save time and ensure it's ready to pour over the hot cake.
Line baking sheet: Use parchment paper to line your baking sheet for easy cleanup and quick removal of the cake.

Gluten-Free Texas Sheet Cake
Ingredients
Cake
- 2 cups Gluten-Free All-Purpose Flour
- 2 cups Sugar
- 1 cup Butter unsalted
- 1 cup Water
- ½ cup Buttermilk
- 2 large Eggs beaten
- 1 teaspoon Baking Soda
- 1 teaspoon Vanilla Extract
- ¼ cup Cocoa Powder unsweetened
Frosting
- ½ cup Butter unsalted
- ¼ cup Cocoa Powder unsweetened
- ¼ cup Milk
- 1 teaspoon Vanilla Extract
- 3 cups Powdered Sugar
Instructions
- Preheat your oven to 350°F (175°C). Grease a baking sheet.
- In a large mixing bowl, combine the gluten-free flour and sugar.
- In a saucepan, melt the butter. Add water and bring to a boil. Remove from heat and stir in cocoa powder. Pour over the flour mixture and mix well.
- Add buttermilk, beaten eggs, baking soda, and vanilla extract to the mixture. Stir until smooth.
- Pour the batter into the prepared baking sheet and spread evenly. 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 the butter. Stir in cocoa powder, then add milk and vanilla extract. Remove from heat and gradually stir in powdered sugar until smooth.
- Once the cake is done, pour the warm frosting over the hot cake. Let it cool before serving.
Nutritional Value
Keywords
Suggested Appetizers and Main Courses for This Cake
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