Bitters, love them, need them, can't say you hate them. Any cocktail needs them. They are to the American/UK cocktail as hops are too beer in my opinion. I am getting into making my own spirited bitters. My latest an apple bitters makes an amazing old fashioned. Nothing mind blowing, nothing sweet, just spicy 100proof rye, rough cut sugar, 3 dashes of apple bitters, a lemon twist and a medium cube. It is making my vacation start right at 5:35....