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Chocolate Texas Sheet Cake

Amazing from scratch chocolate cake with melt in your mouth chocolate frosting.
Prep Time 30 minutes
Cook Time 25 minutes
Total Time 55 minutes
Servings 16
Author Marty's Musings



  • 2 cups flour
  • 2 cups sugar
  • 1/4 tsp salt
  • 4 tbs heaping cocoa
  • 2 sticks butter
  • 1 cup boiling water
  • 1/2 cup buttermilk
  • 2 beaten eggs
  • 1 tsp baking soda
  • 1 tsp vanilla


  • 1/2 cup finely chopped walnuts optional
  • 1 3/4 stick butter
  • 4 tbs heaping cocoa
  • 6 tbs milk
  • 1 tsp vanilla
  • 1 lb. powdered sugar


  1. Grease and flour 10x15 glass dish.
  2. In a mixing bowl, combine flour, sugar and salt.
  3. In a saucepan, melt butter. Add cocoa and stir together. Add boiling water, allow mixture to boil for 30 seconds, then turn off heat.
  4. Pour over flour mixture and stir lightly to cool.
  5. In a small bowl pour the buttermilk and beaten eggs together. Add baking soda and vanilla.
  6. Stir buttermilk mixture into butter/chocolate mixture.
  7. Pour into 10x15 glass dish and bake at 350 degrees for 25 minutes.
  8. While cake is baking, make the icing. Melt butter in a saucepan. Add cocoa, stir to combine, then turn off heat.
  9. Add the milk, vanilla and powdered sugar and stir together. Pour over warm cake and sprinkle with chopped walnuts.

Recipe Notes

Since I never have buttermilk I pour just a bit less milk and add a small amount of white vinegar to sour the milk.
I forgot to mix the walnuts in with the chocolate frosting so I sprinkled them on top instead.