Mayonnaise Cake
["1 1/2 c. mayonnaise", "1 1/2 c. sugar", "3 c. flour", "6 Tbsp. cocoa", "3 tsp. soda", "1 1/2 tsp. vanilla", "1 1/2 c. cold water"]
["Cream margarine and sugar; mix with dry ingredients, then add vanilla and water.", "Bake at 350\u00b0 for 35 to 40 minutes."]
["mayonnaise", "sugar", "flour", "cocoa", "soda", "vanilla", "cold water"]