Texas Sheet Cake

This Texas sheet cake is just what you need for your next party, potluck, tailgate, or holiday celebration. It’s a rich, dense chocolate cake topped with a fudgy, pourable icing that will totally satisfy any chocolate craving.

This Texas sheet cake keeps things simple and delicious—a dense, tender chocolate cake with a luscious, fudgy icing that’s poured right on top and sets to a glossy finish. Baked in a large 10×15-inch pan, it makes about 32 servings, making it perfect for feeding a crowd at get-togethers big or small.

It comes together quickly, too—around 10 minutes of hands-on prep and 20 minutes in the oven. The ingredients are straightforward and budget-friendly. Sour cream gives the cake a moist, rich crumb, and the stovetop cocoa step boosts the chocolate flavor beautifully. The icing, poured warm over the cake, creates that signature fudgy, glossy finish everyone loves.

Below, you’ll find everything you need to nail this recipe confidently:

• A full list of ingredients for both cake and icing
• Easy-to-follow, step-by-step instructions with helpful photos
• Pro tips to keep your cake moist and get that perfect icing texture
• Simple swaps and variations, including nut-free and gluten-free ideas
• Storage and freezing pointers, plus answers to the most common questions

What Makes It So Good

This Texas sheet cake is a classic for a reason: it’s an easy way to make a big, crowd-pleasing dessert without stress. The size of the pan yields about 32 servings, ideal for potlucks, family gatherings, school events, or any time you need to feed a bunch of people. Prefer vanilla over chocolate? A vanilla sheet cake with whipped buttercream delivers the same easy, crowd-pleasing format.

• Thanks to sour cream, the crumb stays moist and tender with just the right richness.
• It’s super speedy—only about 10 minutes to prep and 20 minutes to bake—so you get a homemade dessert on the table fast.
• The stovetop-made icing is pourable and fudgy, spreading perfectly over the warm cake for a shiny, slightly firm finish that everyone raves about; if you love that cocoa-forward finish, try these chewy and gooey chocolate crinkle cookies.
• The recipe uses simple, budget-friendly ingredients and straightforward steps, so it’s great for bakers at any skill level.
• You can easily switch up the nuts or skip them altogether, and this cake freezes well for make-ahead occasions.

Cake and Frosting Ingredients

• All-purpose flour
• White sugar
• Baking soda
• Salt
• Sour cream
• Eggs
• Butter
• Water
• Unsweetened cocoa powder
• Milk
• Confectioners’ sugar
• Vanilla
• Walnuts (optional)

Mix, Bake, and Ice

1. Gather all ingredients.
2. Preheat oven to 350°F (175°C) and grease and flour a 10×15-inch jelly roll (sheet) pan.
3. Whisk together the all-purpose flour, white sugar, baking soda, and salt in a large mixing bowl.

4. Beat in the sour cream and eggs until the batter is smooth.

   

5. In a small saucepan over low heat, melt the butter, whisk in the water and unsweetened cocoa powder, bring to a gentle boil, then remove from heat.
6. Let the cocoa mixture cool slightly, then stir it into the flour-and-egg mixture until well blended and pour the batter into the prepared pan.
7. Bake in the preheated oven until a toothpick inserted in the center comes out clean, about 20 minutes.

8. While the cake bakes, in a saucepan over medium heat combine the milk, unsweetened cocoa powder, and butter.

   
9. Bring the icing mixture to a boil, remove from heat, whisk in confectioners’ (powdered) sugar and vanilla extract, and fold in walnuts if using.
10. Pour or spread the warm icing over the warm cake immediately.

11. Slice the cake.

    

Pro Tips and Serving Ideas

“This cake feeds a crowd, costs very little to make, and is guaranteed to disappear fast,” says culinary producer Nicole McLaughlin. Here are her favorite insider tips:

· She swears by sour cream—it keeps the cake super moist and adds a little tang that balances the sweetness perfectly.
· Don’t worry if your batter looks thin, it’s supposed to! This ensures the cake bakes up moist and tender.
· Always pour that delicious icing over the cake while both are still warm. They set together for that classic fudgy texture and shiny finish everyone loves.

“My aunt used to bring this to family dinners and I adored it,” shares one happy baker. “It’s rich, fudgy, and perfectly chocolaty. I followed the recipe exactly but definitely gave the cocoa a generous handful!”

“The best version ever,” says another. “I swap the water for instant coffee to get a deeper chocolate flavor. So yummy!”

“I baked this for my kid’s 11th birthday, and six months later, people are still talking about it,” gushes a fan. “It’s a timeless southern chocolate cake classic!”

Special thanks to Corey Williams for editorial contributions.

This cake stands beautifully on its own but pairs wonderfully with a scoop of vanilla ice cream or a dollop of whipped cream. Fresh berries or a dusting of powdered sugar add a pretty touch, too. If you love berry-and-chocolate pairings, this Raspberry Chocolate Cake Roll makes a gorgeous, party-friendly alternative.

Flavor Swaps and Add-Ins

If you want to mix things up, try one of these simple swaps or add-ins — the basic method stays the same, but you can adjust flavor and texture to your liking:

• Substitute the water for 1 cup brewed strong coffee or 1–2 teaspoons instant coffee when melting butter and cocoa for a richer chocolate punch (a favorite community tip!).
• Switch walnuts out for chopped pecans, toasted almonds, or leave out nuts entirely if you need to keep it nut-free.
• Replace sour cream with plain Greek yogurt or buttermilk in the same amount to keep that lovely tang and moist crumb.
• Add 1/2 to 1 cup semisweet chocolate chips folded into the batter before baking for an extra fudgy surprise.
• Make cupcakes or use two 9×13-inch pans instead of one 10×15-inch pan; just shorten baking time to 12–16 minutes for cupcakes and test doneness with a toothpick; for cupcake-specific timing and doneness cues, see Raspberry Chocolate Cupcakes.
• For gluten-free baking, swap in a 1:1 gluten-free flour blend. Just know the texture and bake time might shift slightly.
• For richer icing, replace some or all of the milk with heavy cream, or add a pinch of salt and a splash more vanilla to brighten the flavor.

• Swap water for coffee to deepen the chocolate flavor.
• Use different nuts like pecans or almonds, or leave nuts out for allergies.
• Replace sour cream with Greek yogurt or buttermilk for a similar moistness.
• Add chocolate chips into the batter for extra fudgy bites.
• Try making cupcakes or smaller pans for portion control.
• Make it gluten-free by using your favorite gluten-free flour blend.
• Enrich the icing with heavy cream or more vanilla for a decadent twist.

Storage and Freezing Tips

Wrap your Texas sheet cake tightly, and it will keep fresh at room temperature for up to three days or in the fridge for up to five days.

Yes, you can totally freeze this cake! For best results, bake it in a disposable foil pan. Once cooled and iced, wrap it snugly with plastic wrap and a layer of foil. Freeze for up to a month. To thaw, bring it to room temperature or pop it in the fridge overnight.

Keep your Texas sheet cake covered tightly with plastic wrap or foil to maintain moisture. It stores beautifully at room temperature for up to three days, or you can refrigerate it for up to five days to enjoy for longer.

This cake is perfect for making ahead! Bake it in a foil pan, then cool and frost it as instructed. Once iced, wrap it well with plastic wrap and foil before storing in the fridge or freezer. It freezes well for about a month, making party prep a breeze. For another make-ahead option that freezes well, try our Moist & Easy Carrot Cake with Cream Cheese Frosting.

Common Questions Answered

• Q: Can I use regular unsweetened cocoa powder? A: Absolutely! The recipe calls for unsweetened cocoa to give that rich chocolate kick. You can use Dutch-process cocoa too, but just know it might change the cake’s color and flavor a bit.
• Q: Why pour the icing over the cake while it’s warm? A: Pouring warm icing on warm cake helps it set with that beautiful fudgy shine and lets some of the icing soak into the crumb for the perfect texture.
• Q: How do I know when the cake is done? A: Stick a toothpick in the center—when it comes out clean or with just a few moist crumbs, you’re good. Bake time is about 20 minutes at 350°F, but ovens vary, so keep an eye on it!
• Q: Can plain yogurt replace sour cream? A: Yes! Plain Greek yogurt works great in the same amount, keeping the cake moist and tender.
• Q: Can I make this ahead and freeze it? A: For sure. Bake in a foil pan, then once cooled and iced, wrap tightly and freeze up to a month. Thaw in the fridge or at room temperature.
• Q: What about nut allergies? A: Just leave out the walnuts in the icing. You can add sprinkles, toasted coconut (if safe), or just leave it plain and still delicious.
• Q: Can I swap butter for oil? A: You can use vegetable oil in the cake for a slightly different texture (same amount), but butter is best in the stovetop cocoa mixture for flavor. Keep butter in the icing for the best fudgy finish.
• Q: Can I adjust the recipe for different pan sizes? A: Yes. Smaller pans or deeper batter require longer baking, while cupcakes bake faster; for a tested cupcake recipe, try Gingerbread Cupcakes. This recipe is designed for a 10×15-inch pan giving about 32 servings.

• Q: Can I use Dutch-process cocoa? A: Yes, but it might slightly change the color and acidity.
• Q: Why pour icing warm? A: It melts slightly into the cake for a perfect fudgy texture.
• Q: How do I check if the cake’s done? A: Toothpick should come out clean or with few crumbs.
• Q: Can I substitute yogurt for sour cream? A: Yes, same amount works well.
• Q: Can I freeze this cake? A: Yes! Wrap well and freeze up to 1 month.
• Q: What if there’s a nut allergy? A: Omit nuts, or use safe toppings like sprinkles or toasted coconut.
• Q: Can I use oil instead of butter? A: Oil works in the cake, but butter is best in the cocoa mixture for flavor.
• Q: Can I adjust for different pan sizes? A: Yes, bake time will vary. Smaller pans need longer; cupcakes bake faster.