Cookie Sheet Cake
["2 c. flour", "2 c. sugar", "1 tsp. baking soda", "1 tsp. vanilla", "1/2 tsp. salt", "4 Tbsp. cocoa", "1 c. water", "1/2 c. buttermilk", "2 eggs, beaten", "2 sticks margarine"]
["Combine sugar, flour, soda and salt in large bowl.", "Mix margarine, cocoa and water together and bring to a boil.", "Pour over dry mixture and mix well.", "Add buttermilk, eggs and vanilla. Mix well.", "Pour into greased and floured 12 x 15 x 2-inch pan. Bake 15 to 20 minutes at 350\u00b0."]
["flour", "sugar", "baking soda", "vanilla", "salt", "cocoa", "water", "buttermilk", "eggs", "margarine"]