Chocolate Sheet Cake - cooking recipe

Ingredients

2 c. flour
2 c. sugar
1 stick margarine
1/2 c. shortening
4 Tbsp. cocoa
1 c. water
1/2 c. buttermilk
2 eggs, slightly beaten
1 tsp. soda
1 tsp. vanilla

Preparation

Mix in saucepan, margarine, shortening, cocoa and water and bring to boil.
Pour over flour and sugar.
Add other ingredients. Bake in shallow greased pan (20 x 13-inch) at 375\u00b0 for 20 minutes or until it springs back to touch.
Five minutes before cake is done, prepare frosting.