Chocolate Texas Ranch Cake (super moist)

This is THE BEST Texas sheet cake you will EVER have. This is a 'famous' recipe from my sis-in-law. It was her Grandma Haws's recipe, and well-known over in eastern Idaho. Seriously...this is the best recipe! Every time I make it for potlucks or funerals it is always the first to go, and everyone wants the recipe. I made it over the weekend for a ward funeral and it was talked about quite a bit at church today. YUM!

1 c. water
4 Tbl. cocoa
2 cubes butter
2 c. sugar
2 c. flour
1/2 tsp. salt
1 tsp. soda
2 eggs
1 c. sour cream
1 tsp vanilla

Boil water, butter, and cocoa. Add to sugar, flour, salt, and soda. Beat well. Add eggs, sour cream, and vanilla. Beat well. Pour into a greased sheet cake pan. Bake for 20 minutes at 350 degrees.

Frosting for Texas Ranch Cake:
1 cube butter
4 tsp. cocoa
6 tsp milk
2 c. powdered sugar
1 tsp vanilla

Boil butter, cocoa, and milk together. Add powdered sugar. Beat well. Add vanilla. Spread over warm cake.