Chocolate Sheet Cake
["2 c. flour", "2 c. sugar", "1 tsp. soda", "dash of salt", "1 c. water", "2 sticks margarine", "4 Tbsp. cocoa", "1/2 c. buttermilk or sour milk", "2 eggs", "1 tsp. vanilla"]
["Put first 4 ingredients in mixing bowl.", "Bring water, margarine and cocoa to a boil and add to dry ingredients.", "Mix thoroughly.", "Add remaining ingredients and mix well.", "Bake at 400\u00b0 for 20 minutes in 12 x 17-inch pan."]
["flour", "sugar", "soda", "salt", "water", "margarine", "cocoa", "buttermilk", "eggs", "vanilla"]