Best Ever Chocolate Sheet Cake
["2 c. sugar", "2 c. flour", "1/2 c. margarine", "1/4 c. baking cocoa", "1 c. water", "2 eggs, beaten", "1/2 c. buttermilk", "1 tsp. soda", "1 tsp. vanilla"]
["Mix flour and sugar in mixing bowl. Bring to a boil the margarine, baking cocoa and water. Pour over flour mixture and mix well. Beat in eggs. Add buttermilk, soda and 1 teaspoon vanilla and mix well. Spoon into a greased and floured 12 x 17-inch baking pan. Bake at 350\u00b0 for 25 to 30 minutes."]
["sugar", "flour", "margarine", "baking cocoa", "water", "eggs", "buttermilk", "soda", "vanilla"]