Surprise Cake
["2 c. self-rising flour", "2 c. sugar", "1 stick margarine", "1/2 c. shortening", "1 c. water", "3 1/2 Tbsp. cocoa", "1/2 c. buttermilk", "2 eggs (unbeaten)", "1 tsp. salt", "1 tsp. vanilla", "1 tsp. soda"]
["Mix 2 cups flour and 2 cups sugar in mixing bowl; set aside. Cook together 1 stick margarine and shortening, 1 cup water and cocoa.", "Let come to a boil.", "Pour over flour and sugar mixture. Mix well.", "Add buttermilk, eggs, salt, vanilla and soda.", "Mix well and pour into cookie sheet.", "Bake at 400\u00b0 for 20 minutes."]
["flour", "sugar", "margarine", "shortening", "water", "cocoa", "buttermilk", "eggs", "salt", "vanilla", "soda"]