Of all the made from scratch chocolate cake recipes I've made over the years, I think this one is the best. Why shouldn't it be? It's from my mother in law.
Chocolate Sheet Cake
2 cups sugar
2 cups flour
1 teaspoon baking soda
1/4 teaspoon salt
2 sticks margarine (or butter)
4 Tablespoons (slightly rounded)
1 cup water
Bring water mixture to boil. Pour over dry ingredients. Beat.
1/2 cup buttermilk
1 teaspoon vanilla
Bake in a greased and floured sheet cake pan at 350° for 20-25 minutes.
Melt 3/4 stick oleo (or butter) and 6 tablespoons buttermilk. Add 3-4 tablespoons cocoa. Bring to boil. Add 1 box powdered sugar and 1 teaspoon vanilla. Spread while hot over cooled cake. Add 1 cup nuts if desired.