Texas Chocolate Sheet Cake and Buttermilk

This Texas Sheet Cake is the well-balanced amount of chocolate, moist, and satisfying. You get a moist, straightforward-to-make cake, without the fuss and without it being too rich. It’s straightforward to cook and straightforward to serve.

We're a 7th generation Texan, and this is The Texas Sheet Cake recipe we grew up with. It’s been passed down in our family for generations, and we’ve served it at everything from birthdays to backyard cookouts. We've tested a lot of versions over the years, but nothing beats this one. It’s rich, moist, and that warm, poured-on frosting gives it that signature melt-in-your-mouth texture. This isn’t another chocolate cake… It’s a piece of home.
What is Texas Sheet Cake
Texas Sheet Cake is a classic Southern chocolate cake baked in a large sheet pan and topped with a warm chocolate frosting that’s poured over the cake while it’s still hot. The frosting melts slightly into the surface, creating a rich, fudgy layer that soaks right into the cake.
Unlike tall layer cakes, Texas Sheet Cake is thin, ultra-moist, and made to feed a crowd. It’s typically baked in a jelly roll pan or sheet pan, which gives it that signature low profile and makes it straightforward to slice and serve at potlucks, family gatherings, and holidays.
Some versions also include chopped pecans in the frosting and use buttermilk in the batter, which adds tang and keeps the cake soft. It’s a plain, nostalgic dessert that’s been a staple across Texas and the South for generations.
Why Recipe For Texas Sheet Cake stays in the rotation
- It’s the real deal. This isn’t any chocolate cake. It’s a true Texas Sheet Cake, straight from a 7th generation Texan’s family recipe.
- That warm icing magic. The fudgy, pour-on icing sinks into the cake while it’s still hot, giving you that signature melt-in-your-mouth texture.
- Feeds a crowd. Whether it’s at a potluck, party, or your family with a big sweet tooth, this one makes enough to go around.
- Plain, but still has big flavor. There’s no complicated steps or fancy ingredients. It’s a classic, foolproof cake that delivers every single time.
- Comfort food at it’s finest. It’s ridiculously, nostalgic, and rich good. The kind of cake that disappears fast and gets asked for often.
Texas Sheet Cake Recipe Ingredients
- All purpose flour
- Granulated sugar
- Sour cream
- Eggs
- Baking soda
- Salt
- Butter
- Water
- Cocoa powder
- Buttermilk
- Powdered sugar
- Vanilla

How to cook Texas Sheet Cake (Step by Step)
- Preheat the oven to 350ºF.
- Cream together the sugar, sour cream, and eggs in a mixing bowl.
- Add the flour, baking soda, and salt. Mix well.
- In a saucepan over medium heat, melt the butter. Turn off the heat and whisk in the water and cocoa until smooth.
- Add the cocoa and butter mixture to the mixing bowl with the flour. Mix well to combine.
- Pour the batter into a greased half-sheet size pan with sides.
- Bake for 20 minutes. Remove from the oven and cool slightly before icing. It can still be warm.





How to cook Texas Sheet Cake Frosting
- Heat a small saucepan over low heat.
- Add the butter and let it melt completely.
- Add the buttermilk and cocoa. Whisk to combine.
- Remove it from the heat and add it to a mixing bowl with powdered sugar and vanilla.
- Spread it on the cake while the icing is still warm.
- Let the cake cool completely before serving. The icing will firm up once it cools.


Texas Sheet Cake Recipe Variations & Substitutions
- If you enjoy a little crunch, you can stir about ½ to 1 cup of chopped nuts into the warm frosting or sprinkle them over the top before it sets.
- Add a small pinch of cinnamon in the batter. It doesn’t make the cake taste like cinnamon, but it adds a subtle warmth that pairs nicely with the chocolate.
Best Texas Sheet Cake Recipe Tips
- When making the icing, it’s important to keep it over low heat. If you get it too hot, it will begin to separate.
- You do not have to wait for the cake to cool completely to add the icing. Pour it over the warm cake.
How to keep Texas Sheet Cake
Allow the cake to cool completely. Cover it tightly and it can be stored at room temperature for up to 2 days.
To extend the shelf life (or to avoid softening of the icing), you can cover it and place it in the refrigerator.
How to Freeze Texas Sheet Cake
You can freeze Texas sheet cake. Cover it tightly and place it in an airtight container in the freezer for up to 6 months. When you’re ready to enjoy it, allow it to thaw in the refrigerator overnight.
How Long Does Texas Sheet Cake Last
Texas Sheet Cake will last for up to 2 days at room temperature when covered tightly or stored in an airtight container. Keep it somewhere cool and out of direct sunlight so the frosting stays firm.
For longer storage, cover the cake and refrigerate it for up to 5 days. The refrigerator can make the cake slightly firmer, so we like to let individual slices sit at room temperature for about 15 to 20 minutes before serving.
Serving Suggestions for Texas Sheet Cake
Texas Sheet Cake is the kind of dessert that’s as welcome at a casual weeknight supper as it is at a potluck or holiday gathering. Because it’s baked in a large pan and straightforward to slice, it’s suited to feeding a crowd.
Serve it slightly warm for a house favorite texture, when the chocolate frosting is still soft and melt-in-your-mouth. A scoop of vanilla ice cream on the side is always a great addition and balances the rich chocolate.
It’s also right at home alongside a cup of coffee or a cold glass of milk. Since the cake stays moist and soft, it’s as good the next day and makes a great cook-ahead dessert for parties, family gatherings, and bake sales.
Texas Sheet Cake FAQs

Prep 15 minutesCook 20 minutesTotal 35 minutesMakes 20 people
Ingredients
Cake Ingredients
- 2 cups all purpose flour
- 2 cups granulated sugar
- 1/2 cup sour cream
- 2 large eggs
- 1 teaspoon baking soda
- 1/2 teaspoon salt
- 2 sticks butter
- 1 cup water
- 4 tablespoons cocoa powder
Icing Ingredients
- 1 stick butter
- 1/4 cup cocoa powder
- 1/3 cup buttermilk
- 1 lb powdered sugar
- 1 teaspoon vanilla
Method
Cake
- Preheat the oven to 350ºF.
- In a mixing bowl, cream together sugar, sour cream, and eggs.
- Add the flour, baking soda, and salt. Mix well.
- To a saucepan over medium heat, melt the butter. Turn off heat and whisk in the water and cocoa until smooth.
- Add the cocoa and butter mixture to the mixing bowl with the flour. Mix well to combine.
- Pour the batter into a greased half-sheet sized pan with sides.
- Bake for 20 minutes. Remove from the oven and cool slightly before icing. It can still be warm.
Icing
- Heat a small saucepan over low heat.
- Add the butter and let it melt completely.
- Add the buttermilk and cocoa. Whisk to combine.
- Remove it from the heat and add it to a mixing bowl with powdered sugar and vanilla.
- Spread it on the cake while the icing is still warm.
- Let the cake cool completely before serving. The icing will firm up once it cools.
Notes
- When making the icing, it’s important to keep it over low heat. If you get it too hot, it will begin to separate.
- You do not have to wait for the cake to completely cool to add the icing.








