Chocolate Texas Cake is that classic thin sheet cake with a tender chocolate crumb and a warm cocoa frosting poured right over the top.
I like this style of cake because it’s quick to slice and serve, and the frosting sets into that soft, fudgey layer that makes Texas sheet cake what it is. The flavor is straight cocoa and the texture stays soft as long as you don’t push the bake time.
This is one of my go-to desserts for potlucks, birthday tables, and any time I need a one-pan chocolate cake that travels well and doesn’t need fancy decorating.
Why You’ll Love This Recipe
One-pan friendly: It bakes in a sheet pan, so there’s no stacking, leveling, or decorating stress.
That poured frosting: The warm cocoa frosting spreads fast and sets into a smooth, sliceable layer that tastes like old-school lunchroom cake (in the best way).
Soft chocolate crumb: The cake is thin and tender, and it stays soft when you pull it on time.
Great for sharing: You get a lot of servings without making a giant layer cake, and the slices look neat on a plate.
Pecan option: Chopped pecans on top are classic, but it’s just as good plain if you want a smoother bite.
Ingredients You’ll Need
Chocolate Cake
- All-purpose flour: I use regular flour here. It keeps the cake tender, not heavy.
- Granulated sugar: This is the classic sweetener for Texas sheet cake, and it helps keep the crumb soft.
- Baking soda: Don’t skip it. It’s important with the buttermilk and helps the cake rise just enough.
- Fine salt: Just enough to keep the chocolate from tasting flat.
- Unsalted butter: Butter gives the cake that rich, classic flavor. If you only have salted butter, just go lighter on added salt.
- Water: This is what makes the cocoa mixture easy to boil and pour into the batter.
- Unsweetened cocoa powder: Dutch-process gives a deeper color, and natural cocoa is a little lighter and more old-school. Either works.
- Eggs: Use large eggs. They help the cake set up without getting dry.
- Buttermilk: This is where the tender texture comes from. Real buttermilk is great, but a quick milk-and-lemon version works too.
- Vanilla extract: I like a real vanilla extract here. It rounds out the cocoa flavor.
Chocolate Frosting
- Unsalted butter: This makes the frosting taste like fudgy chocolate icing instead of a simple glaze.
- Milk: Regular milk is fine. Use what you have in the fridge.
- Unsweetened cocoa powder: Same deal as the cake—Dutch-process is darker, natural is more classic. I usually match whatever I used in the cake.
- Powdered sugar: Sift it if it’s really lumpy, especially if your powdered sugar has been sitting awhile.
- Vanilla extract: A small amount makes the frosting taste more like chocolate frosting and less like sweet cocoa.
- Salt: Just a pinch. It helps the frosting taste more balanced.
Optional
- Pecans: Chopped pecans are the traditional finish. I like a fairly small chop so the slices cut clean.
Recipe Instructions
- Preheat the oven: Heat the oven to 350°F and grease a 13 x 18-inch sheet pan.
- Mix the dry ingredients: In a large bowl, whisk the flour, sugar, baking soda, and salt together.
- Boil the cocoa mixture: In a saucepan, bring the butter, water, and cocoa powder to a boil, whisking until smooth.
- Combine wet and dry: Pour the hot cocoa mixture over the dry ingredients and whisk just until combined.
- Add the eggs: Whisk in the eggs until the batter looks smooth.
- Add the buttermilk and vanilla: Whisk in the buttermilk and vanilla until fully blended and no dry spots remain.
- Fill the pan: Pour the batter into the prepared pan and spread it out evenly.
- Bake: Bake for 18 to 22 minutes, until the center springs back and a toothpick comes out with moist crumbs.
- Start the frosting: During the last 5 minutes of baking, heat the butter, milk, and cocoa in a saucepan until just bubbling and smooth.
- Finish and frost: Remove from the heat and whisk in the powdered sugar, vanilla, and a pinch of salt until glossy and pourable. Pour over the warm cake, spread quickly to the edges, and sprinkle with pecans if using.
- Cool: Let the cake cool until the frosting is set, about 30 to 60 minutes, then slice.
Some of my tips!
This is the part that really makes a difference. If you only read one section, make it this one because this is where I share the little trick that helps the recipe turn out so well.
Recipe Tips & Tricks
Don’t overbake the cake. This one dries out fast if you push it too long. Pull it when a toothpick has moist crumbs, not when it’s totally clean.
Use the right pan size. A 13 x 18-inch sheet pan gives you the classic thin Texas sheet cake. A smaller pan will make it thicker and you’ll need a longer bake time.
Whisk just until combined. Once the hot cocoa mixture hits the flour, it comes together quickly. Overmixing can make the cake a little tougher.
Pour the frosting on a hot cake. It spreads easily and sets into that signature layer. If the cake cools too much, the frosting thickens and won’t level out as nicely.
Buttermilk is worth it. If you don’t have it, stir lemon juice or vinegar into milk and let it sit for a few minutes before using. It gives a similar tang and keeps the crumb tender.
Make some touches!
There are plenty of easy ways to serve this depending on the occasion. Keep it simple, or add a few small touches to make it feel a little more special.
Serving Suggestions
- Milk: A cold glass of milk is classic with Texas sheet cake. It keeps the whole thing simple and not too fussy.
- Coffee: I like this with plain black coffee or a latte. The cocoa frosting is especially good with something warm to sip.
- Ice cream: Vanilla ice cream on the side turns a small square into a full dessert plate. This is great if you’re serving it after dinner.
- Berries: Fresh strawberries or raspberries are nice if you want something light alongside the cake. I usually just set a bowl out and let people add them.
Save it for later
This section covers how to store leftovers and what parts of the recipe you can prepare ahead of time.
Storage and Make Ahead
Store the cake covered at room temperature for 2 days. I usually keep it right in the pan with a tight cover so the frosting stays soft.
For longer storage, refrigerate it for up to 5 days. Let slices sit at room temperature for a bit before serving so the frosting softens again.
You can also make it ahead the day before a party and leave it covered. The flavor settles in nicely, and it’s easy to slice when you’re ready.
If you want it longer than that, freeze individual portions in an airtight container. Thaw in the fridge overnight, then let it come to room temp before serving.
A few quick answers
This section covers a few extra details that may help before you head to the recipe card.
Recipe FAQs
Can I use a buttermilk substitute?
Yes. Stir 1 tablespoon of lemon juice or vinegar into a measuring cup, add milk to make 1 cup, then let it sit for about 5 minutes. It works well in this cake.
Should I use Dutch-process cocoa or natural cocoa?
Either one works here. Dutch-process gives a darker color and a slightly smoother chocolate flavor, and natural cocoa has that lighter, more classic Texas sheet cake taste.
What if I don’t have a 13 x 18-inch sheet pan?
You can bake it in a smaller pan, but the cake will be thicker and will need more time. Keep an eye on it and use the toothpick test so you don’t overbake.
Do I have to add pecans?
Nope. Pecans are traditional, but the cake is great without them. If you want a little crunch but not nuts, a light sprinkle of flaky salt on top is also nice.
Why did my frosting set up too fast?
The frosting thickens as it cools, so it helps to have everything ready before you start it. Pour it right away over the warm cake and spread quickly out to the edges.
You might also like
Before you go, take a look at a few other recipes below the recipe card. They use similar ingredients in a different way and are worth saving too.
MORE DINNER RECIPES TO TRY
Chocolate Texas Cake
INGREDIENTS
Chocolate Cake
- 2 cups all purpose flour
- 2 cups granulated sugar
- 1 tsp baking soda
- 1 tsp fine salt
- 1 cup unsalted butter
- 1 cup water
- 4 tbsp unsweetened cocoa powder
- 2 large eggs
- 1 cup buttermilk
- 2 tsp vanilla extract.
Chocolate Frosting
- 1/2 cup unsalted butter
- 6 tbsp milk
- 6 tbsp unsweetened cocoa powder
- 3 1/2 cups powdered sugar
- 1 tsp vanilla extract
- pinch of salt.
Optional
- 1 cup chopped pecans for topping.
INSTRUCTIONS
Bake Cake
- preheat oven to 350 F and grease a 13 by 18 inch sheet pan
- whisk flour sugar baking soda and salt in a large bowl
- bring butter water and cocoa to a boil in a saucepan and whisk until smooth
- pour hot cocoa mixture over dry ingredients and whisk just until combined
- whisk in eggs then buttermilk and vanilla until smooth
- pour batter into pan and spread evenly
- bake until center springs back and a toothpick comes out with moist crumbs 18 to 22 minutes.
Make Frosting and Finish
- during the last 5 minutes of baking heat butter milk and cocoa in a saucepan until just bubbling and smooth
- remove from heat and whisk in powdered sugar vanilla and a pinch of salt until glossy and pourable
- pour frosting over the warm cake and spread quickly to the edges
- sprinkle pecans on top if using
- cool until set 30 to 60 minutes before slicing.
