Mayonnaise Cake
["4 c. flour", "1/2 c. cocoa", "2 c. sugar", "3 tsp. baking powder", "3 tsp. baking soda", "1/2 tsp. salt", "2 c. mayonnaise", "2 c. cold water", "2 tsp. vanilla"]
["Sift dry ingredients together.", "Mix mayonnaise with water. Add to dry mixture; add vanilla and mix.", "Bake at 300\u00b0 for 30 to 40 minutes."]
["flour", "cocoa", "sugar", "baking powder", "baking soda", "salt", "mayonnaise", "cold water", "vanilla"]