Chocolate Sheet Cake
["2 c. flour", "1 tsp. baking soda", "2 sticks margarine", "1 c. water", "2 eggs", "2 c. sugar", "2 tsp. cinnamon", "4 Tbsp. cocoa", "1/2 c. buttermilk", "1 tsp. vanilla"]
["Sift together the flour, sugar, soda and cinnamon.", "In a saucepan, bring to a boil the margarine, cocoa and water.", "Pour over dry ingredients and mix well.", "Add buttermilk, eggs and vanilla.", "Mix well.", "Pour into a 9 x 13-inch greased and floured cake pan.", "Bake 20 minutes in 350\u00b0 oven."]
["flour", "baking soda", "margarine", "water", "eggs", "sugar", "cinnamon", "cocoa", "buttermilk", "vanilla"]