Chocolate Sheath Cake
["2 c. plain flour", "2 c. sugar", "2 sticks margarine", "4 Tbsp. cocoa", "1 c. water", "2 eggs, slightly beaten", "1 tsp. soda", "1 tsp. cinnamon", "1 tsp. vanilla"]
["In a large bowl, sift flour and sugar together. Mix margarine, cocoa and water in a saucepan. Bring to a rapid boil. Pour over flour and sugar mixture and stir until well mixed. Add eggs, soda, cinnamon and vanilla. Mix well and pour into well-greased 11 x 16-inch pan. Bake at 400\u00b0 for 25 minutes."]
["flour", "sugar", "margarine", "cocoa", "water", "eggs", "soda", "cinnamon", "vanilla"]