Millie'S Chocolate Sheet Cake
["2 c. flour", "2 c. sugar", "1 c. water", "4 Tbsp. cocoa", "2 sticks margarine", "2 beaten eggs", "1/2 c. buttermilk", "1 tsp. soda", "1 tsp. cinnamon", "1 tsp. vanilla"]
["Mix flour and sugar together.", "Boil water, cocoa and margarine and pour over flour; add eggs.", "Dissolve buttermilk, soda, cinnamon and vanilla together.", "Mix all together.", "Bake at 400\u00b0 for 30 minutes.", "Use a 9 x 13-inch cake dish."]
["flour", "sugar", "water", "cocoa", "margarine", "eggs", "buttermilk", "soda", "cinnamon", "vanilla"]