White Texas Sheet Cake

White Texas Sheet Cake is a light and fluffy white cake topped with a sweet, buttery frosting that is loaded with toasted walnuts.

slice of white texas sheet cake

Making a layer cake can be a little intimidating and does take quite a bit of time to make, bake, and decorate but this White Texas Sheet Cake is a piece of cake! Seriously. Absolutely no decorating skills or special equipment are needed. You just need a pan, mixing bowls, and a sauce pan. Plus, this baby feeds 24 people and it’s way easier to slice up than layered cake, not to mention, it keeps the portions to a more realistic size.

slice of texas sheet cake

How to Make White Texas Sheet Cake

It’s so easy to make a White Texas Sheet Cake!  You’ll start with toasting the walnuts that go into the frosting. Toasting the nuts brings out their nutty flavor and give them a nice crunchy texture. All you have to do is toss them onto a pan and bake them for 5 to 7 minutes at 350 degrees F. If you like adding nuts to your salads, go ahead and throw in some extra to keep on hand.

Next, you’ll prepare the pan for the cake. Just spray a 15x10x1 inch pan with cooking spray. You can use a 17×13 inch pan, but the cake will be slightly thinner and you’ll want to begin to checking if it’s done at 18 minutes.

sliced white texas sheet cake

To make the batter, place butter and water in a pot and heat it to a boil. While you’re waiting, measure all the dry ingredients together into a large mixing bowl and the eggs, sour cream, and extract in a small mixing bowl. Once the butter and water come to a boil you’ll mix them in with the dry ingredients followed by the egg mixture. Then just pour it in to the pan and spread the batter evenly across the pan.

Since this cake is thin, you only have to bake it for around 20 minutes. What’s different about this cake is that you frost it when it’s still warm. After you pull the cake out of the oven, you begin to make the frosting by melting butter in a pan with some milk. Once it’s melted and starts to boil  you take it off the heat and add in the sugar and extract.  Once smooth, stir in the toasted walnuts, pour it over the warm cake and spread it in an even layer.

It’s hard to resist but let it cool completely and then slice it up. Enjoy!

slice of texas sheet cake

5 from 1 vote

White Texas Sheet Cake

Here's a classic recipe for White Texas Sheet Cake with Boiled White Frosting and added walnuts!

Prep Time 10 minutes
Cook Time 32 minutes
Total Time 42 minutes
Servings 24 servings
Calories 335 kcal



  • 2 cups all-purpose flour
  • 2 cups granulated white sugar
  • 1 teaspoon baking powder
  • 1 teaspoon salt
  • 1/4 teaspoon baking soda
  • 2 large eggs
  • 1/2 cup sour cream
  • 1 teaspoon vanilla extract
  • 1 cup (2 sticks) butter, cubed
  • 1 cup water


  • 1/2 cup (1 stick) butter, cubed
  • 1/4 cup milk
  • 1/2 teaspoon vanilla extract
  • 4 cups powdered sugar
  • 1 cup chopped walnuts


Toast the Walnuts:

  1. Preheat oven to 350 degrees F. Place the walnuts (from the frosting ingredients) on a baking sheet and bake for 5 to 7 minutes, until toasted and fragrant. Set aside and let cool.

Prepare the Cake:

  1. Grease a 15x10x1 inch baking sheet* and preheat oven to 375 degrees F. (If using a dark colored pan, set to 350 degrees F.)

  2. In a large mixing bowl, whisk together the flour, sugar, baking powder, salt, and baking soda. Set aside. In a small mixing bowl, beat the eggs, sour cream, and vanilla extract together. Set aside.

  3. In a small pot, bring butter and water to a boil, remove and stir into the dry ingredients. (Don't wash the pan! You'll use it for the frosting.) Add in the egg mixture and stir until combined. Spread the batter into the prepared pan and bake for 20 to 22 minutes or until toothpick comes out clean.  Set the cake aside to cool slightly while preparing the frosting.

Prepare the Frosting:

  1. In a medium saucepan, bring the butter and milk to a boil.  Remove from heat and whisk in the extract and the powdered sugar 1 cup at a time until smooth. Stir in the toasted walnuts.  Pour over the cake and spread evenly. Let cool, slice, and serve.

Recipe Notes

*If you use a (larger) 17x13x1 inch baking sheet, just begin to check if it is done starting at 18 minutes.

Nutrition Facts
White Texas Sheet Cake
Amount Per Serving (1 slice)
Calories 335 Calories from Fat 144
% Daily Value*
Total Fat 16g 25%
Saturated Fat 8g 40%
Cholesterol 50mg 17%
Sodium 226mg 9%
Potassium 67mg 2%
Total Carbohydrates 45g 15%
Sugars 36g
Protein 2g 4%
Vitamin A 8.5%
Vitamin C 0.1%
Calcium 2.8%
Iron 4.1%
* Percent Daily Values are based on a 2000 calorie diet.


You Might Also Like...
Melanie Dueck

Meet The Author: Melanie Dueck

Leave a Comment

Your email address will not be published. Required fields are marked *


  • Lisa Spencer wrote:

    Just made this cake this morning. It’s delicious!!!!!!!!!!!!!! Only thing I did was change from walnuts to pecans.