
My go-to crowd-pleaser has always been this incredibly moist Texas Sheet Cake. The beauty lies in its simplicity - toss everything into one pan, pour hot frosting on the cake right out the oven, and you'll get this amazing fudgy dessert that vanishes before your eyes at family get-togethers.
The first time I whipped this up was for my kid's baseball team party. It was gone in seconds! These days, everyone bugs me to bring it to family reunions, and I've learned my lesson - I always make two batches if I want any leftovers!
Ingredients
- Butter: makes everything super moist and gives both cake and frosting that rich taste
- Water: helps create that classic thin sheet cake consistency
- Unsweetened cocoa powder: gives you that deep chocolate kick without going overboard on sweetness
- All purpose flour: keeps everything structured but still soft to bite
- Granulated sugar: takes the edge off the cocoa's bitterness
- Baking soda: creates that fluffy rise and tender bite
- Salt: brings out all the tastes and cuts through sweetness
- Eggs: hold everything together and build the cake's foundation
- Buttermilk: adds that slight tanginess and keeps everything super juicy
- Vanilla extract: complements the chocolate flavors perfectly
- Powdered sugar: makes that smooth frosting that hardens just right
- Pecans: add that satisfying crunch and authentic Texas touch
Step-by-Step Instructions
- Prepare the pan:
- Grease a 15x10 inch jelly roll pan really well. The mix will be runny, so don't miss any corners or it'll stick. Get your oven hot at 350°F so your cake bakes evenly.
- Create the chocolate base:
- Grab a medium saucepan, put it on medium heat, and melt your butter completely. Throw in water and cocoa powder, and keep stirring until everything bubbles up nicely. This step really brings out the chocolate flavor. Take it off the heat quick so it doesn't burn.
- Mix dry ingredients:
- In a big bowl, whisk your flour, sugar, baking soda, and salt until you can't see any lumps. This way, everything gets evenly mixed through your cake.
- Combine wet and dry:
- Pour your hot cocoa mix over the dry stuff and stir it gently but thoroughly. The heat from the liquid actually starts cooking things and creates that special texture. Make sure you mix in all the flour.
- Add remaining wet ingredients:
- Drop in eggs one at a time, stirring well after each one. Mix in buttermilk and vanilla until everything looks smooth and shiny. Don't worry if it's thinner than normal cake batter.
- Bake to perfection:
- Pour the mix into your pan and use a spatula to push it into all the corners. Bake for 20 minutes exactly, then check by sticking a toothpick in. It should come out with just a few crumbs, not wet batter.
- Make the frosting:
- While the cake's in its last 5 minutes, start on the frosting. Melt butter in a saucepan, stir in cocoa until smooth, then add milk. Take it off the heat and gradually stir in powdered sugar and vanilla until it's silky.
- Apply the frosting:
- As soon as the cake comes out, pour that warm frosting all over it. Work fast to spread it evenly before it starts to set. Sprinkle pecans on top if you want, pressing them lightly into the frosting.

You Must Know
- The cake keeps cooking even after you take it out thanks to leftover heat
- The frosting gets firm enough to stack and carry around easily
- You're looking at about 320 calories per slice
- Stays good on the counter for up to 3 days
What makes this treat stand out is pouring hot frosting on a hot cake. My grandma showed me this trick years ago. She always said the heat creates that special fudgy layer between cake and frosting you just can't get when you use cold frosting.
Make Ahead Tips
This sheet cake actually tastes better the next day! The flavors get deeper and the texture becomes just right when you make it a day early. Just cover it with plastic wrap once it cools down completely. It stays moist and yummy on your counter for up to three days. If you need to keep it longer, cut it into pieces and freeze them separately for up to two months.

Tasty Alternatives
The classic Texas Sheet Cake is chocolate, but you can switch things up really easily. For a white version, just skip the cocoa powder in both the cake and frosting, and put in an extra teaspoon of vanilla. Want a peanut butter twist? Add half a cup of peanut butter to your warm frosting. My favorite change is adding a teaspoon of cinnamon to the dry ingredients for a Mexican chocolate feel that adds a nice warmth.
Serving Suggestions
This cake tastes great by itself, but turns into something special when served warm with vanilla ice cream on top. For casual parties, cut big squares. For fancier times, make smaller rectangles and add fresh berries and mint. It goes really well with coffee or cold milk, and makes a surprisingly good breakfast treat the morning after!
The History Behind The Cake
This dessert got its name partly from its huge size and partly from how popular it became across Texas since the 1950s. Folks created it as a practical sweet for big gatherings where serving individual layer cakes would be too much work. It became a must-have at church meetings, potlucks and family reunions all over Texas. People think the trick of pouring hot frosting on hot cake started back when folks needed desserts to cool quickly before refrigerators were common.
Frequently Asked Questions
- → How can I keep the cake from sticking?
Be sure to coat your pan well with either butter or non-stick spray. Lining it with parchment paper makes lifting the cake out even easier.
- → What can I use instead of buttermilk?
No buttermilk on hand? Try mixing ½ cup of milk with 1½ teaspoons of either vinegar or lemon juice. Let it sit for a few minutes before use.
- → What’s the best size for the sheet pan?
A 13x18-inch pan, also called a half-sheet pan, is just right. It helps you get those thin, even layers Texas cake is known for.
- → Do I have to include the pecans?
Pecans are optional! They bring crunch and extra flavor, but the frosting is great on its own too.
- → Can I prepare this cake in advance?
Absolutely! Keep it at room temperature in an airtight container for a few days, or refrigerate for longer. It even freezes well when wrapped tightly.