Fizzes are any number of sour-based cocktails with the mandatory addition of club soda and lemon juice. Gin was the earliest spirit used in a fizz. The Gin Fizz, which is a close relation to the Tom Collins, has been satisfying bar patrons for more than a hundred years. One of the defining differences between a Gin Fizz and a Tom Collins is the glass size. Highball glasses containing 8 to 12 ounces are preferred for a fizz, while the larger collins glass is, not surprisingly, preferred for a Collins. The Ramos Gin Fizz, formulated by the Ramos brothers in New Orleans in the late 1880s, remains popular today, especially as a hangover cure. Legend has it that the initial Ramos Gin Fizz required so much vigorous shaking that it was passed among patrons until their arms tired.