Mayonnaise Chocolate Cake
["2 c. flour", "1 c. sugar", "1 1/2 tsp. soda", "1 1/2 tsp. baking powder", "4 Tbsp. cocoa", "1 c. water", "1 tsp. vanilla", "1 c. mayonnaise"]
["Mix flour, soda, sugar, baking powder and cocoa in bowl.", "Stir thoroughly, then add water, mayonnaise and vanilla.", "Stir enough to mix.", "Bake at 350\u00b0 for 35 minutes in two 9-inch layer pans or 1 hour in tube pan.", "Pans should be greased and floured.", "Cool cake."]
["flour", "sugar", "soda", "baking powder", "cocoa", "water", "vanilla", "mayonnaise"]