Chocolate Sheet Cake or Texas sheet cake

2 c. flour
2 c. sugar
1/2 tsp. salt
2 sticks marg. or butter
1 c. water
3 T cocoa
2 eggs
1 tsp soda
1/2 c. buttermilk
1 tsp. vanilla
Bring to boil in saucepan the marg., water, and cocoa, then cool.  Sift together flour, sugar, and salt.  Beat eggs until fluffy.  Add buttermilk, soad and vanilla.  Beat slowly the egg mixture while adding the flour mixture, then the warm cocoa mixture.  Bake for 20-25 min. at 350 degrees in a cookie sheet pan

Frosting
1 stick butter
3 T cocoa
5 T milk
1 lb powdered sugar
1/2 tsp. vanilla
Bring butter, cocoa and milk to boil in med. saucepan.   Pour powdered sugar in to pan and beat smooth.  Add vanilla.  Frost over cooled cake