Chocolate Cake
["2 c. self-rising flour", "2 c. sugar", "2 eggs", "1 c. buttermilk", "1 tsp. baking soda", "1/2 c. water", "1/2 c. vegetable oil", "1 stick margarine, melted", "1/2 c. cocoa", "1 tsp. vanilla"]
["Mix together and bake in 9 x 13-inch pan at 375\u00b0 for 35 minutes.", "Top with the following topping."]
["flour", "sugar", "eggs", "buttermilk", "baking soda", "water", "vegetable oil", "margarine", "cocoa", "vanilla"]