New York Sour is a somewhat more fruity and colorful answer to a Whiskey Sour. A New York Sour is a Whiskey Sour with a few tablespoons of red wine floating on top of the cocktail. New York Sour is a variation of the classic and very popular Whiskey Sour. This is a drink you must try if you are already a fan of the original version. The original edition is sometimes also referred to as a Boston Sour.