Chocolate Texas Sheet Cake is one of those cakes I make when I want a big pan of something reliably good and deeply chocolatey. The cake is ultra moist, bakes quickly, and slices neatly for sharing.
My favorite part is the warm fudgy cocoa frosting that gets poured right on top. It sets into a glossy layer that’s soft but sliceable, and the whole thing has that classic cocoa-butter flavor I associate with old-school sheet cakes.
I like this cake for potlucks, holidays, and casual weekends when I want dessert handled for a few days. It’s also great when you need something that serves a lot of people without a lot of fuss.
Why You’ll Love This Recipe
Fast and Easy: It’s a simple batter that comes together quickly, and the bake time is short for a cake that feeds a crowd.
Super Moist: Sour cream keeps the crumb soft and tender, even after the frosting sets.
Fudgy Frosting: The warm cocoa frosting spreads like a dream and sets into that classic Texas sheet cake top layer.
One Big Pan: No layers, no stacking, no fancy decorating. Just bake, frost, slice.
Pecan Friendly: Chopped pecans are optional, but they add a nice little crunch if you like nuts in your sheet cake.
Ingredients You’ll Need
Cake
- All-purpose flour: I use regular flour here. Spoon and level if you tend to pack flour into the cup.
- Granulated sugar: This is the classic sweetener for Texas sheet cake, and it keeps the texture nice and soft.
- Baking soda: Don’t skip it—this is what gives the cake lift with the sour cream in the batter.
- Fine salt: Regular fine table salt is perfect. It keeps the chocolate from tasting flat.
- Unsalted butter: Butter gives the cake that rich, old-school flavor. I stick with unsalted so the salt level stays in my control.
- Water: This gets heated with the butter and cocoa. It’s simple, and it works.
- Unsweetened cocoa powder: Dutch-process gives a deeper color, but natural cocoa is the classic taste. Either is fine.
- Eggs: Use large eggs. I like to have them at room temp, but it’s not a deal breaker.
- Sour cream: This is where the super moist texture comes from. Full-fat plain Greek yogurt works too if that’s what you have.
- Vanilla extract: Plain vanilla is all you need here. It rounds out the cocoa flavor.
Fudge Frosting
- Unsalted butter: This is the base of the frosting, so use real butter. It makes the frosting set up the right way.
- Whole milk: Whole milk gives you the best texture, but 2% will work in a pinch.
- Unsweetened cocoa powder: Same deal as the cake—Dutch-process for darker, natural for classic.
- Vanilla extract: Adds that familiar frosting flavor. Stir it in off the heat.
- Powdered sugar: Sift if yours is really lumpy, but usually whisking well is enough.
- Chopped pecans (optional): I like them for crunch, but the cake is totally fine without nuts.
Recipe Instructions
- Preheat the oven: Heat the oven to 350°F and grease a 13×18-inch rimmed sheet pan.
- Mix the dry ingredients: Whisk the flour, sugar, baking soda, and salt together in a large bowl.
- Heat the cocoa mixture: In a saucepan, bring the butter, water, and cocoa to a simmer, whisking until smooth.
- Combine the batter: Pour the hot cocoa mixture over the dry ingredients and whisk until combined.
- Add the wet ingredients: Whisk in the eggs, sour cream, and vanilla just until smooth.
- Bake: Spread the batter evenly in the pan and bake for 18 to 22 minutes, until a toothpick comes out clean.
- Start the frosting: During the last 5 minutes of baking, simmer the butter, milk, and cocoa in a saucepan, whisking until smooth, then remove from the heat.
- Finish the frosting: Whisk in the vanilla, then gradually whisk in the powdered sugar until glossy and spreadable. Stir in the pecans if using.
- Frost and cool: Pour and spread the frosting over the hot cake, then cool for 30 to 60 minutes until set before slicing.
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
Use the right pan size. A 13×18-inch rimmed sheet pan gives you that classic Texas sheet cake thickness. If you go bigger, the cake will be thinner and will bake faster.
Whisk the cocoa mixture until it’s smooth. You don’t want little cocoa lumps floating around. A whisk and a couple extra seconds on the stove makes a difference.
Don’t overmix once the eggs go in. Mix just until the batter looks smooth. Overmixing can make the cake a little tougher than it needs to be.
Frost it while the cake is hot. That’s how you get the frosting to spread easily and settle into the top. It also helps the frosting set up into that classic sheet cake finish.
Add espresso powder if you want. A little espresso powder in the cocoa mixture won’t make it taste like coffee. It just pushes the chocolate flavor forward.
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
- Vanilla ice cream: A scoop on the side is simple and really good, especially if you serve the cake slightly warm. It’s my go-to when I want dessert to feel a little more special without extra work.
- Cold milk: This is a classic sheet cake pairing for a reason. The frosting is rich, and milk just fits.
- Fresh berries: Strawberries or raspberries are nice on the plate if you want something fresh with it. I usually keep them plain or lightly sweetened.
- Extra chopped pecans: If you like nuts, sprinkle a few on each slice right before serving. It gives a little crunch on top.
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 leftovers covered at room temperature for 1 to 2 days if your kitchen isn’t too warm. After that, I usually move it to the fridge since the frosting holds up well chilled.
Store leftovers covered in the fridge for up to 4 days. The cake stays moist, and the frosting gets a little firmer, which some people actually prefer.
To serve, I’ll often let slices sit out for 15 to 20 minutes so the frosting softens a bit. You can also warm a slice briefly in the microwave if you like it a little gooey.
If you want them to last longer, freeze individual portions wrapped well, then stash them in a freezer bag or container. Thaw in the fridge overnight or on the counter for a couple hours.
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 Greek yogurt instead of sour cream?
Yes. Full-fat plain Greek yogurt works well and keeps the same moist texture. I’d avoid nonfat since it can make the cake a little less rich.
What kind of cocoa powder should I use?
You can use either natural cocoa powder or Dutch-process. Dutch-process gives a darker color and a slightly smoother chocolate flavor, while natural cocoa tastes more classic and a little sharper.
How do I know when the cake is done?
Start checking around 18 minutes. The top should look set, and a toothpick in the center should come out clean or with just a couple moist crumbs.
Do I have to add pecans?
Nope. The cake is great without nuts, and the frosting still sets up nicely. If you’re serving a crowd and aren’t sure about allergies, I’d leave them out and let people add chopped nuts on their own.
Can I make this in a different pan?
Yes, but you’ll need to watch the bake time. A larger pan makes a thinner cake (start checking around 15 minutes), and a smaller pan makes it thicker and may need a little longer.
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 Sheet Cake
INGREDIENTS
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 2 cup sour cream
- 1 tsp vanilla extract.
Fudge Frosting
- 1 2 cup unsalted butter
- 6 tbsp whole milk
- 4 tbsp unsweetened cocoa powder
- 1 tsp vanilla extract
- 3 1 2 cups powdered sugar
- 1 cup chopped pecans optional.
INSTRUCTIONS
Cake
- heat oven to 350 F and grease a 13x18 inch rimmed sheet pan
- whisk flour sugar baking soda and salt in a large bowl
- in a saucepan bring butter water and cocoa to a simmer whisking until smooth
- pour hot cocoa mixture over dry ingredients and whisk until combined
- whisk in eggs sour cream and vanilla just until smooth
- spread batter evenly in pan and bake until a toothpick comes out clean 18 to 22 minutes.
Frosting And Finish
- during the last 5 minutes of baking simmer butter milk and cocoa in a saucepan whisking until smooth then remove from heat
- whisk in vanilla then gradually whisk in powdered sugar until glossy and spreadable
- stir in pecans if using
- pour and spread frosting over hot cake and cool 30 to 60 minutes until set before slicing.
