
The BEST Texas Sheet Cake
Why is it called Texas Sheet Cake?
It's not known why chocolate sheet cake is often referred to as “Texas sheet cake.” I like to think it's because it's a cake the size of Texas. 🙂
This chocolate cake recipe is made in a sheet cake pan, which is where it gets the name, “sheet cake.” A sheet cake is any cake that is made in a large rectangular pan known as a sheet pan or jelly roll pan.
What size pan to make sheet cake:
Texas sheet cake recipes usually bake in a baker's half-sheet pan that's 18×13” inch. I prefer this type of pan because it results in a thinner cake with a thin layer of chocolate frosting, and it's perfect for feeding a crowd.
You can bake Texas sheet cake in a 9×13” pan, but increase the baking time to about 30-35 minutes.
What's the difference between Sheet Cake and Regular Cake?
The primary difference between sheet cake and regular cake is the size of the cake pan. Sheet cake is made in a sheet cake pan which is a shallow, large pan. Regular cake is usually made in a 9×13 baking dish or, for a double layer cake, it's made in two 8-9” round pans.
How to make Texas Sheet Cake:
- Add to saucepan: water, butter, and cocoa powder and bring mixture to a boil.
- In a bowl: mix together the flour, sugar, baking soda, and salt.
- In another bowl: mix together the sour cream, eggs and vanilla. Add sour cream/egg mixture to the flour mixture and mix until combined.
- Combine the batter. Once the chocolate mixture in the saucepan in boiling, remove it from heat and pour it into the batter. Mix until combined and no lumps remain.
- Pour into sheet pan. Pour mixture into prepared pan and smooth with a spatula to make sure it is dispersed in an even layer.
- Bake. at 350°F for 15-20 minutes or until set (mine is usually done around 15 minutes).
How to make Sheet Cake Frosting:
- In a saucepan: Add milk, cocoa and butter; bring mixture to a boil.
- Stir in: powdered sugar. I like to beat the mixture with my hand-held mixer to get rid of any lumps.
- Pour over cake. Pour the hot mixture right over the hot cake. Use a spatula to spread it evenly over the cake. Allow frosting to set for about 10 minutes before eating.
Do you need to refrigerate Texas Sheet Cake?
You don't have to, but it will last better and longer if stored, covered, in the refrigerator. If you live somewhere warm and humid, it's especially best to store it in the fridge.
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Recipe

The BEST Texas Sheet Cake
Equipment
Ingredients
- 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)
- 1/2 teaspoon salt (2.5 g)
- 1/2 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)
- 1/2 cup butter (115 g)
- 3 3/4 cups powdered sugar (450 g)
Instructions
- Preheat oven to 350 degrees F and grease a 18x13'' pan.
- Add water butter cocoa powder to a medium saucepan over medium heat. Bring mixture to a boil.
- Meanwhile, in a separate bowl mix together the flour, sugar baking soda and salt.
- In another small bowl mix together the sour cream, eggs and vanilla.
- Add sour cream/egg mixture to the flour mixture and mix until combined.
- Once the chocolate mixture in the saucepan in boiling, remove it from heat and pour it into the batter. Mix until combined and no lumps remain.
- Pour mixture into prepared pan and smooth with a spatula to make sure it is dispersed in an even layer.
- Bake in preheated oven for 15-20 minutes or until set (mine is usually done around 15 minutes).
- When the cake is about half-way through cooking, prepare the frosting.
For the Chocolate Sheet Cake Frosting
- Add milk, cocoa and butter to a saucepan. Bring mixture to a boil.
- Once boiling, remove it from the heat and stir in powdered sugar. I like to beat the mixture with my hand-held mixer to get rid of any lumps.
- Pour hot icing over hot cake. Use a spatula to spread it evenly over the cake. Allow frosting to set for about 10 minutes before eating.
Notes
Nutrition
Have you tried this recipe?!
RATE and COMMENT below! I would love to hear your experience.
*I originally shared this recipe September 2011. Updated May 2019.
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This cake is amazing! My husband said it is the best cake ever! I took this to our family’s Thanksgiving dinner and everyone who tried it loved it! This will be a go to recipe when I need to take a dessert somewhere. My mom used to make this when I was young and I didn’t have her recipe so when I saw all the great reviews on this recipe I knew it was the one to try. I just made a second one to take to another dinner tomorrow! My mom will be there and I can’t wait for her to try it. She told me the story of how when she was young and stayed all night with her friend Margaret her mother would make a Texas Sheet Cake and she couldn’t more than get it out of the over before they were begging for a piece. I hope this brings back many great memories for her like it did me. Thanks for the amazing recipe.
Never even heard of a Texas sheet cake until I saw this recipe on Instagram. Wow ! What a simple cake but it is just so so so so good. The cake… the frosting… I’ve never liked such a simple chocolate cake before. SO good ! Making it again after just a few days 🙂
This is the go-to recipe I use for Texas Sheet Cake! I’ve made a few and this one with sour cream is just the BEST! We are gluten free and I have had absolutely no trouble substituting a gf all-purpose flour and keeping the rest of the recipe the same. I’ve used walmart brand gf flour, krusteaz, king arthur, and a homemade better batter knockoff flour and all of them have worked just fine! Thanks for a great recipe!
Thank you for this GF comment! 🙂
Just like the title implies, this really is the BEST Texas sheet cake! Thanks for such a fabulous recipe, Lauren!!
Substitute a cup of strong coffee for the cup of water, it makes a yummy mocha brownie. 9×13 is a good size for a pan and still yields lots of squares. Either way, still the best recipe ever.
Love that idea! Thanks for sharing 🙂
I find that Texas sheet cakes are usually very much the same thing when it comes to ingredients. I’ve had the best Texas sheet cake and it comes from the pioneer woman (she calls it best sheet cake. It’s the same thing.) there is one thing that changes and that is the amount of cocoa. I enjoy more cocoa. In the one mentioned previously, she uses 4 heaping tablespoons versus your 3. It really comes down to preference. In my own opinion, you don’t put in enough. I’ve seen some that are so pale, I wouldn’t even think to try them. I love chocolate though. I like it rich. My sister tried pioneer woman’s version and she didn’t care for it. She likes less. i think it’s becoming more difficult for anyone to claim a “best” since there will always someone who claims different. 😉
thank you for having recipe that you can print off.
I have made one similar to this. However, instead of sour cream, my recipe calls for buttermilk. It also calls for pecans in the frosting. You are right….it is the best tasting cake!!!! Every time I make it for a pot luck, everybody loves it and wants the recipe. We also cook it in a 9 x 13 pan.
ho long did you cook it in 1 9 by 13?
These look more like a thinner brownie. Could you put it in a 9 x 13 and make it as a cake?
Hi Laura, it’s not a brownie texture (chewy, thick, dense) at all. It’s very much a cake in taste and texture 🙂 I’ve never tried baking it in a 9×13”…You would have to cook it quite a bit longer.
Yes you can bake it in a 9×13 pan for 25 minutes. I have baked the Texas Sheet cake many times. However, I stir in a cup of pecans to the warm frosting.
can you make this cake using a cookie sheet? (I don’t have a larger jelly roll pan)
Hi Steph, What size is your cookie sheet? And does it have sides?
I add 1 tsp. cinnamon to the cake and chopped nuts in the frosting!
I made the Texas Sheet cake, the best ever I ever tasted, love, love,loved it THE BEST………… thank you for the recipe…….
Kathy
Thanks Kathy, it’s a GREAT recipe!!
I love this recipe but am wondering what is soad? I think it is baking soda but I am not sure.
Thanks so much,
Lori
I apologize for the typo–yes, I was referring to baking soda! Thanks Lori!