Chocolate Mayonnaise Cake
["2 c. flour", "4 tsp. cocoa", "1 tsp. baking powder", "1 c. cold water", "1 c. sugar", "1 tsp. baking soda", "1 c. mayonnaise", "1 tsp. vanilla"]
["Sift flour, sugar, cocoa, baking powder and soda.", "Add mayonnaise, cold water and vanilla.", "Beat 2 minutes.", "Bake at 350\u00b0 until done."]
["flour", "cocoa", "baking powder", "cold water", "sugar", "baking soda", "mayonnaise", "vanilla"]