Mayonnaise Cake
["1 tsp. baking powder", "1 tsp. baking soda", "1/2 tsp. salt", "2 c. flour", "1/4 c. cocoa", "3/4 c. mayonnaise", "1 c. sugar", "1 c. water", "1 tsp. vanilla"]
["Sift together the first 5 ingredients.", "Work mayonnaise and sugar together with a spoon until smooth.", "Add water and vanilla to dry ingredients. Mix all ingredients together and beat until smooth.", "Turn into greased pan.", "Bake in moderate oven at 350\u00b0 for 35 minutes or until done."]
["baking powder", "baking soda", "salt", "flour", "cocoa", "mayonnaise", "sugar", "water", "vanilla"]