Chocolate Cake
["3 c. flour", "2 c. sugar", "2 tsp. baking powder", "1 tsp. salt", "1/3 c. cocoa", "2 c. cold water", "3/4 c. vegetable oil", "3 Tbsp. distilled vinegar", "2 tsp. vanilla"]
["Sift all dry ingredients in large bowl.", "Add liquids to flour mixture and mix well.", "Pour into greased 9 x 13-inch pan.", "Bake at 350\u00b0 for 45 minutes."]
["flour", "sugar", "baking powder", "salt", "cocoa", "cold water", "vegetable oil", "distilled vinegar", "vanilla"]