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Gluten Free Texas Sheet Cake

This Gluten Free Texas Sheet Cake is our go-to cake that everyone can eat and absolutely loves! It will leave you wondering, "Was that really gluten free?"
Course Dessert
Cuisine American
Servings 12 people

Ingredients
  

Cake

  • 1 cup water
  • 1 cup (2 sticks) butter I used unsalted
  • 2 cups gluten free all purpose flour This recpe was tested using King Arthur Gluten Free Measure for Measure flour.
  • 2 cups granulated sugar
  • 1 tsp baking soda
  • 1/2 cup sour cream
  • 1 tsp vanilla extract
  • 2 eggs

Frosting

  • 1/2 cup (1 stick) butter unsalted
  • 1/4 cup milk I used almond milk
  • 4 1/2 cups powdered sugar
  • 1 tsp vanilla extract

Instructions
 

Cake

  • Preheat oven to 375 degrees F. Grease an 8x12 baking dish.
  • In a sauce pan, bring 1 cup of water and 2 sticks of butter to a boil.
  • Combine flour, sugar and baking soda in a large mixing bowl.
  • In another bowl combine 2 eggs, sour cream and vanilla extract. Add to dry ingredients and mix.
  • Carefully pour the boiling water/butter mixture into the other ingredients and mix until creamy.
  • Pour the batter into your greased baking dish and bake for approximately 25-30 minutes.
    The time may depend on your oven and choice of gf flour. Monitor the cake after 25 minutes. You know it is done when a toothpick or fork can be inserted into the center of the cake and removed cleanly.
  • Let the cake sit and cool for 20 minutes, then pour the frosting over the warm cake and let sit for at least 2 hours to let it set. Let rest overnight for best results.

Notes

This cake is an adaptation of a traditional sheet cake recipe. To make it thin like a regular sheet cake, you can make it in a 15"x10"x1" pan.  This is a wonderful option for parties or feeding lots of people. 
Another option is to use almond extract in the cake instead of vanilla.
Keyword dessert, gluten free