Grandma's Chocolate Texas Sheet Cake Recipe

Grandma's Chocolate Texas Sheet Cake Recipe

Cook Time: 25 minutes

Chocolate Cake with Frosting

Ingredients

This recipe yields 24 servings.

Cake

  • 1 cup salted butter
  • 1 cup water
  • 3 tablespoons cocoa powder
  • 2 cups all-purpose flour
  • 2 cups white sugar
  • teaspoon salt
  • cup buttermilk
  • 2 large eggs
  • 1 teaspoon baking soda
  • 1 teaspoon vanilla extract

Frosting

  • cup unsalted butter
  • 6 tablespoons milk
  • 2 cups confectioners' sugar

Directions

  1. Preheat the oven to 350F (175C). Grease and flour a 10x15-inch cake pan.
  2. Prepare the cake: In a saucepan, combine the butter, water, and cocoa powder over medium heat. Stir occasionally until the butter melts and the mixture comes to a boil. Remove from heat and allow it to cool slightly.
  3. Mix dry ingredients: In a large bowl, whisk together the flour, sugar, and salt.
  4. Prepare the wet ingredients: In a separate bowl, beat together the buttermilk, eggs, baking soda, and vanilla extract.
  5. Combine the mixtures: Gradually add the cooled butter mixture into the dry ingredients. Then, fold in the buttermilk-egg mixture. Beat until all ingredients are fully combined.
  6. Pour into the pan: Pour the batter into the prepared cake pan, spreading it evenly.
  7. Bake the cake: Place the pan in the oven and bake for about 20 minutes, or until a toothpick inserted into the center comes out clean. Remove the cake from the oven and allow it to cool on a wire rack for 5 minutes.
  8. Prepare the frosting: While the cake is baking, combine the butter, milk, cocoa powder, and vanilla extract in a saucepan over medium heat. Stir until the butter melts, then gradually add in the powdered sugar. Stir until smooth.
  9. Frost the cake: Spread the frosting over the warm cake, ensuring it covers the entire surface.

Recipe Tip

If using a dark-coated pan, reduce the baking temperature to 325F (165C) to avoid over-browning.

Nutrition Facts (per serving)

  • Calories: 259
  • Total Fat: 12g (16% Daily Value)
  • Saturated Fat: 8g (38% Daily Value)
  • Cholesterol: 47mg (16% Daily Value)
  • Sodium: 170mg (7% Daily Value)
  • Total Carbohydrate: 36g (13% Daily Value)
  • Dietary Fiber: 1g (3% Daily Value)
  • Total Sugars: 27g
  • Protein: 2g (5% Daily Value)
  • Calcium: 20mg (2% Daily Value)
  • Iron: 1mg (4% Daily Value)
  • Potassium: 55mg (1% Daily Value)

Note: Nutritional information is based on available data and may vary based on specific ingredients used. If you are following a medically restrictive diet, please consult your doctor or dietitian before preparing this recipe.

Grandma's Chocolate Texas Sheet Cake Recipe

Comments

Pamela Owens

10/06/2025 01:52:54 PM

This is almost the classic Texas Sheet Cake, but not quite. I still have my recipe card with the original recipe from the a Gladiola flour sack from the 1950’s. Gladiola Flour, made only in Texas, first developed the recipe & put it on their sacks. It was originally called the “Chocolate Dream Cake,” but soon became known as “Texas Dream Cake,” then as “Texas Sheet Cake,” as the recipe spread out of Texas. It’s exactly like this recipe EXCEPT THE SECRET INGREDIENT: 1 tsp Cinnamon. Without the cinnamon, it’s very good; with the cinnamon, it’s out of this world.

Lisa Walsh-Wells

11/11/2023 02:05:53 PM

This is the second time I have made Texas Sheet Cake and it turned out perfect. I read the other reviews on the runny icing, and I let the icing cool for about 10 minutes or so, and it thickened up on its own. Also, remember, every oven temperature is a little different. I also used a 9x13 glass pan and had to bake the cake for an additional 10 minutes, but I keep checking every 5 minutes.

Christine Hoppe

03/31/2020 12:39:53 AM

I double the chocolate, bc, why not. This time we added almond extract to both cake batter and icing...smells divine!

yarnieface

01/19/2023 01:18:43 AM

This cake was delicious! Made as a birthday cake and everyone loved it. I only have a 9x13 pan so it needed about 8 more minutes in the oven. The icing was a bit runny, which I think is how it's supposed to be, but I iced the cake when it was cool and let the icing cool a bit too, which helped it to thicken a bit. Added some chopped toasted pecans to the top.

CyanPate7089

05/16/2025 07:36:59 AM

Made this for family gatherings for many decades. The directions make it overly complicated. I Increased the cocoa to 1/2c. put the dry ingredients in a mixer bowl, pour boiling cocoa mixture over and mix well. Add buttermilk, mix, add eggs last. pour into a jellyroll pan, bake 20 minutes. Use buttermilk in frosting, pour over hot cake sprinkle with nuts.

JoyfulOnion1679

09/08/2024 06:42:30 AM

I sometimes use sour cream instead of buttermilk. I use 4 T of cocoa in the batter and in the icing. I use almost 3 cups of powdered sugar in the icing I usually use a 17 inch pan. Another bonus is that the whole cake is done in a half hour

Sandy Lynne Catalano

04/05/2020 10:14:02 PM

An easy 5 star chocolate cake. I tripled the amount of cocoa and baking time needed to be increased by 20 minutes. ( It could be my oven so bake as directed and test if done.)

J B Eidson

05/16/2020 06:32:32 PM

I made this cake for my husband’s birthday last weekend. It was so good I made it again this weekend. I too had to double the cook time before it was done. This time I doubled the frosting recipe and added 1/2 t cinnamon and a cup of pecans. Delicious.

Esthela Michel MadameBella

05/23/2020 02:16:28 AM

What a moist cake! I made the recipe as instructed but added chopped pecans on top. The cake itself is not too sweet but with the very sweet topping creates a perfect combination. This was a super easy recipe and my first cake from scratch. Will make it again. It got a silent reaction because my family was too busy inhaling this cake.

Lori Nielsen-Gonzales

04/18/2020 05:00:37 PM

So amazing! I accidentally only put 1/2 cup of butter in the cake and I don’t know if it needed another 1/2 cup. It was delicious! I also added 1/4 tsp of salt to the icing because it was very sweet. I will definitely be baking this one again!

blackhighheels

05/20/2024 01:14:14 AM

This didn't taste like a sheet cake to me. The texture was wrong. It was good, though. I did use some cinnamon in it, as suggested by another baker. I recommend the first time you do that, start with 1/2 teaspoon. Then you can adjust up or down based on your preference if you decide to do it again. I also agree with the many comments that the frosting ratios are wrong. The icing is definitely too thin and never sets. Never. I let it get completely cold before using it and it still hadn't thickened at all. Overall, I thought it was good, but will use a completely different recipe the next time I want a Texas sheet cake.

Trish

08/21/2025 03:48:53 AM

Very easy to make if you're pressed for time. Delicious snack chocolate cake. Only modification was reducing the sugar in the batter by half. In the frosting, we used whipping cream instead of milk, for added flavor.

Bonnie Simon Plummer

08/18/2025 03:20:28 PM

Everything about Texas Sheet Cake is yummy, and it is hard to mess this one up. I also added a touch of peanut butter to the batter and then the frosting. It does not get any better than this. I was also thinking about just baking this and adding a bit of cinnamon.

Karen

07/30/2025 06:48:40 AM

Good flavor but wet consistency and took a lot longer to cook.

LovingIce4447

01/12/2025 01:50:33 AM

Didn’t change a thing Yummy!!

Megan Viard

12/02/2024 01:50:40 AM

The, "extremely runny icing" is supposed to be runny. You pour it over the hot cake, AS SOON as it comes out of the oven. This isn't your traditional chocolate cake w/frosting. As the cake cools, the icing will also.

Ashley Nguyen

11/25/2024 04:17:24 PM

I didn’t change a thing and it was perfect.

Keith Chamberlain

09/08/2024 10:46:17 AM

Best cake ever

Melanie Nolan

09/07/2024 05:57:18 PM

I add a little more cinnamon

Paula Woodham

06/15/2024 09:59:58 PM

Made it exactly as the recipe says. Delicious, and I did not think the frosting was too runny. I put it on right after the cake came out of the oven, and when we ate it a few hours later it had set up perfectly. That said, I'm going to try the cinnamon!