Single Texas sheetcake brownie

Classic Texas Sheetcake Brownies Recipe

December 2, 2019 by Michelle

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Texas sheetcake brownies may be, hands down, my favorite brownies. Some links in this post are affiliate links that earn me a commission if you purchase through them.

Texas sheetcake brownies stack

If you haven’t figured it out, I love to bake. In fact, yesterday I made a yellow cake with strawberry frosting with my daughter, just because.

As with most people, I end up baking with chocolate more than anything, however. Whether that’s molten lava cakes or triple chocolate dipped cookies or brownie batter truffles, I keep a stock of good chocolate on hand at all times.

Dig into homemade molten chocolate cake

Brownies are among my favorite desserts because it’s easy to make them in one shot. Bar cookies in general are my favorite to bake for a crowd because I don’t have to take pan after pan of cookies in and out of the oven.

I love classic brownies, but Texas sheetcake brownies are even better – and they make a ton, which is great for pot lucks and other crowds. Plus, they freeze well, so I can enjoy them week after week.

Yummy sheetcake brownies

I’ve shared a version of these before – my Mexican sheetcake brownies – that are lightly spiced to give a little warmth to this classic recipe. Somehow, I never posted the original recipe my mom has made for decades, but I’m rectifying that today.

Classic Texas Sheet Brownies Tips

Make this with buttermilk. It helps make the brownies not too sweet, and gives it the right tang.

If you don’t have buttermilk at home, you can still make these Texas sheetcake brownies, however. When you add acid to milk, the ensuing chemical reaction gives you a good approximation of buttermilk.

Add a tablespoon of lemon juice or vinegar to a liquid measuring cup. Top it with milk until it reaches a half cup, then add an additional third cup of milk so you have enough buttermilk for both the frosting and brownies.

Let this mixture sit for five minutes, and you just made buttermilk. You will need to separate it later into a half cup and third cup, but that’s easy with a second liquid measuring cup.

Use a solid jelly roll pan, which ensures that your brownies bake evenly. The last thing you want is a cheap, thin pan where your brownies burn in one part and are raw in another.

Make the frosting for these Texas sheetcake brownies with about five minutes to go in the cooking time. You want to spread it on your brownies while they’re still warm and while the cooked fudge frosting is not yet set.

Use an offset spatula to spread that frosting on your brownies. It works way better than a traditional spatula, and you can make pretty designs with it, too.

Spread with offset spatula

When you cut the frosted brownies, use a bench scraper. This gives you the cleanest and straightest cuts and is way easier than using a knife. Plus, it’s safer for your pan.

How to Make Classic Texas Sheetcake Brownies

Sheetcake brownies and milk

Make the brownies

Preheat your oven to 350 degrees. Grease a 15x10x1-inch jelly roll pan, which is what I also use to bake cookies. I’m all about multi-purpose purchases.

In a heavy saucepan, add the water, two sticks of butter, and 1/3 cup of cocoa powder. Turn heat to medium, and bring the mixture to a boil, stirring constantly as it starts to warm.

Remove it from the heat as soon as it boils, as it doesn’t need to boil for long. Set it aside while you prep the dry ingredients in a separate mixing bowl.

In that bowl, add the flour, sugar, baking soda, and salt. Stir gently until all the ingredients are well distributed.

Add the melted butter and cocoa mixture to the dry ingredients, and mix on medium speed until everything is completely incorporated. This should still be warm but not boiling hot.

Add your eggs, one half cup of buttermilk, and vanilla, and beat for a minute until the mixture is light. This makes a very thin batter, not like the brownie batters you’re used to making.

Pour the batter into your prepared jelly roll pan, and bake at 350 degrees for 30-35 minutes, until your cake tester comes out clean.

Make sure you don’t overbake this. When you start to see the edges of the brownies pull away from the pan, you know it’s really close to done.

Baked sheetcake brownie

Make the frosting

Once your brownies are close to being done, start to make your frosting so that it’s ready to go when the brownies are still warm.

Feel free to use the same saucepan you did to melt the butter, cocoa, and water for the brownies. There’s no need to dirty another pan when you’re pretty much using the same ingredients.

Combine the remaining three tablespoons butter, the five tablespoons of cocoa powder, and one-third cup of buttermilk. Turn the stove on medium. Bring the mixture to a boil, then remove from the heat.

Add the powdered sugar and the last 2 1/2 tablespoons vanilla and mix, starting on low until the powdered sugar is incorporated, then beating on high until the mixture is smooth. Scrape down the sides of the bowl as needed.

While the icing is still warm, pour it over the Texas sheetcake brownies. Use that offset spatula, and gently pull the icing from the center to the edges until it is all covered in icing.

Let the brownies cool at least 2 hours, then cut into pieces, usually 48 or so decent size brownies from this recipe.

Store any leftovers in a tightly sealed container on your counter for 2-3 days. Layer the brownies with parchment paper, which helps prevent the frosting from sticking to another brownie layer.

These also freeze extremely well for 1-2 months (and are tasty straight from the freezer). Keep the brownies on the parchment paper, which will help absorb any moisture as they thaw.

Have you ever had classic Texas sheetcake brownies?

More great chocolate recipes:

Classic Texas Sheetcake Brownies

Classic Texas Sheetcake Brownies

Yield: 48 brownies
Prep Time: 20 minutes
Cook Time: 35 minutes
Additional Time: 5 minutes
Total Time: 1 hour

These classic Texas sheetcake brownies are my favorite. It's the best and most delicious frosted brownie out there.

Ingredients

For the brownies:

  • 1 c water
  • 1 c butter
  • 1/3 c cocoa powder
  • 2 c flour
  • 2 c sugar
  • 1 t baking soda
  • 1/2 t salt
  • 2 eggs
  • 1/2 c buttermilk
  • 1 1/2 t vanilla

For the frosting:

  • 3 T butter
  • 5 T cocoa powder
  • 1/3 c buttermilk
  • 3 1/2 c powdered sugar
  • 2 1/2 T vanilla

Instructions

  1. Preheat oven to 350 degrees. Grease a 15x10x1-inch cookie sheet.
  2. In a saucepan, combine water, 1 cup butter, and 1/3 cup of cocoa powder. Bring to a boil, stirring constantly, then remove from heat.
  3. In a medium bowl, add flour, sugar, baking soda, and salt, then stir. Add melted butter and cocoa mixture to dry ingredients and mix on medium speed until incorporated. Add eggs, 1/2 cup buttermilk, and vanilla, and beat for a minute.
  4. Pour into prepared pan, and bake at 350 degrees for 30-35 minutes, until cake tester comes out clean.
  5. Make frosting near the end of the baking time. In a saucepan, combine remaining 3 tablespoons butter, 5 tablespoons cocoa powder, and 1/3 cup buttermilk and turn heat to medium. Bring mixture to a boil, then remove from heat.
  6. Add powdered sugar and the last 2 1/2 tablespoons vanilla and mix, starting on low, then beating on high until the mixture is smooth.
  7. Pour still warm frosting over brownies, and gently spread into an even layer. Let brownies cool at least 2 hours, then cut into pieces.

Notes

Store any leftovers in a tightly sealed container with parchment paper between layers on your counter for 2-3 days. These also freeze extremely well for 1-2 months (and are tasty straight from the freezer).

Recommended Products

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Nutrition Information:
Yield: 48 Serving Size: 1 brownie
Amount Per Serving: Calories: 136 Total Fat: 5g Saturated Fat: 3g Trans Fat: 0g Unsaturated Fat: 2g Cholesterol: 20mg Sodium: 98mg Carbohydrates: 22g Net Carbohydrates: 0g Fiber: 0g Sugar: 17g Sugar Alcohols: 0g Protein: 1g
This site uses an outside source to provide nutrition. If you need exact details, please calculate yourself.
Classic Texas sheetcake brownies

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