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Chocolate Texas Sheet Cake

A classic version of a classic cake.

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Photo: 12 Tomatoes Creative Team

There’s a lot to love about Texas Sheet Cake. Maybe for you, it’s the thin cake layer that’s deep on chocolate flavor. Maybe it’s how the frosting is poured on while warm so it settles into an incredible fudgy layer. Maybe it’s how that fudginess is punctuated with crunchy chopped pecans. Maybe it’s just in how those three incredible components come together. Like I said, a lot to love! And that’s exactly why it’s a longstanding classic that’s been around for decades and will be around for many more.

Photo: 12 Tomatoes Creative Team

What Is Texas Sheet Cake?

Texas Sheet Cake first made its appearance in the 1950s or 1960s and was a recipe found in Texas newspapers and also on the backs of flour sacks.

It’s different from other cakes because it’s baked in a sheet pan, so it’s thinner and serves more people. It’s also frosted right in the pan when both the cake and the frosting are still warm, so you don’t have to remove the cake from the pan at all. You just serve it right out of what you baked it in!

The most classic flavor is chocolate, but there are plenty of variations too. We’ve made A Dr Pepper version, a white coconut version, and even an eggnog version.

Photo: 12 Tomatoes Creative Team

What Ingredients Do You Need for Texas Sheet Cake?

It’s mostly the usual baking stuff. You need:

  • flour, sugar, salt, and baking soda
  • cocoa powder
  • butter
  • eggs
  • vanilla extract
  • buttermilk and milk
  • powdered sugar
  • chopped pecans
Photo: 12 Tomatoes Creative Team

How Do You Make Texas Sheet Cake?

It’s a little different from most other cakes, because you’re going to be working on the stovetop a bit but you’re not melting any chocolate.

You see, you combine cocoa powder and butter in a saucepan and then whisk that together with some boiling water for thirty seconds or so. You pour that boiling mixture over your dry ingredients and then you incorporate the rest of your wet ingredients — eggs, buttermilk, vanilla.

Photo: 12 Tomatoes Creative Team

That goes into a half sheet pan, which is 13×18 inches in size, and it bakes for just about fifteen minutes, which is much shorter than most other cakes. You can start working on the frosting while the cake is still in the oven, because with this cake, you pour the hot frosting on a hot cake.

Photo: 12 Tomatoes Creative Team

The frosting also comes together on the stovetop. You melt some butter, whisk in some cocoa powder, and then some milk, powdered sugar, and vanilla. Once that’s smooth, you stir in the chopped pecans, and pour that molten liquid all over the warm cake.

You do want to wait for the frosting to set before you slice it up, but that’s what gives it its signature fudgy texture. And you can serve it right from that sheet pan!

Photo: 12 Tomatoes Creative Team

Yield(s): Serves 12

10m prep time

20m cook time

Allergens: Milk, Gluten, Nuts

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For the cake:
  • 2 cups all-purpose flour
  • 2 cups granulated sugar
  • 1/2 teaspoon salt
  • 1 cup (2 sticks) unsalted butter
  • 1/4 cup unsweetened cocoa powder
  • 1 cup boiling water
  • 1/2 cup buttermilk
  • 2 large eggs, beaten
  • 1 teaspoon vanilla extract
  • 1 teaspoon baking soda
For the frosting:
  • 3/4 cup (1 1/2 sticks) unsalted butter
  • 1/4 cup unsweetened cocoa powder
  • 1/2 cup milk
  • 1 teaspoon vanilla extract
  • 3 cups powdered sugar
  • 1 cup chopped pecans
Preparation
  1. Preheat oven to 350°F and grease a half sheet pan (13x18 inches) with nonstick spray. Set aside.
  2. In a large mixing bowl, stir together the flour, sugar, and salt. Set aside.
  3. In a saucepan over medium heat, melt the butter. Whisk in cocoa powder until thoroughly combined.
  4. Stir in boiling water and increase heat to medium-high. Bring to a boil and let boil 30 seconds. Immediately turn off heat.
  5. Pour hot cocoa powder mixture over flour mixture and stir to mix, scraping the bottom and sides well.
  6. In a medium bowl, whisk together the buttermilk, eggs, baking soda, and vanilla extract. Stir buttermilk mixture into the chocolate/flour mixture.
  7. Pour into prepared baking sheet. Bake until top springs back lightly and edges start to come away from the sides, 15-20 minutes.
  8. While cake bakes, work on the frosting:
  9. In a saucepan over low heat, melt the butter. Once melted, whisk in cocoa powder. Whisk in milk, vanilla, and powdered sugar until fully incorporated and smooth.
  10. Remove from heat and stir in chopped pecans. Pour over warm cake, and use an offset spatula to spread frosting to edges.
  11. Let cool until frosting sets, then slice and serve. Enjoy!

Recipe adapted from My Baking Addition.