Angostura Bitters, one of the supremely key ingredients to a classic cocktail. Angostura has been around a long time, long enough to have a hand in some of the most well known cocktails of the last 100 years. While there are great alternatives to Angostura (namely Fee Brothers product line), there are some that just ask for it by name: "Two dashes of Angostura bitters please." That is right, Angostura is the "household name" (barhold...