Vanilla Texas Sheet Cake
["2 2/3 c. flour", "1 c. margarine, divided", "1/2 c. oil", "2 eggs", "1 tsp. cinnamon", "2/3 c. buttermilk", "8 oz. cream cheese", "1 lb. powdered sugar", "2 c. granulated sugar", "1 c. water", "3 tsp. vanilla, divided", "1 1/2 tsp. baking soda"]
["Mix flour and granulated sugar together.", "Bring 1/2 cup margarine, oil and water to a boil; pour over flour mixture.", "Beat thoroughly.", "Beat in eggs, 2 teaspoons vanilla, cinnamon, baking soda and buttermilk.", "Pour into greased 17 x 11-inch pan and bake 20 minutes in 350\u00b0 oven.", "(Serves 20.)"]
["flour", "margarine", "oil", "eggs", "cinnamon", "buttermilk", "cream cheese", "powdered sugar", "sugar", "water", "vanilla", "baking soda"]