Probably the most popular cocktail bitter available on the market. It was originally created, in 1824, as a stomach bitter, designed to help improve digestion and appetite. Today, the most common application is in cocktails such as the Manhattan and in culinary use for dishes needing added depth of flavour.Angostura is mostly used in classic cocktails that call for bitters. Also, if you have an upset stomach from over indulging, take one teaspoon of Angostura bitters and mix with a small glass of club soda.