A Long Island Iced Tea is a cocktail made with, among other ingredients, vodka, gin, tequila, and rum. A popular variation mixes equal parts vodka, gin, rum, tequila, and triple sec with 1 1/2 parts sour mix with a splash of cola. Close variants often replace the sour mix with sweet and sour mix or with lemon juice, and the cola with actual iced tea. Some chain restaurants even take the liberty of substituting brandy for the tequila.
Some claim that the drink, like most cocktails, was invented during the Prohibition era, as a way of taking the appearance of a non-alcoholic drink (iced tea). A lemon slice is often added to enhance this resemblance. To some, the drink also shares a similar taste to tea. This has led to its frequent use in fiction as a method to get a teetotaler drunk.
However, evidence suggested that Long Island Iced Tea was first served in the late 1970s by Robert (Rosebud) Butt, a bartender at the Oak Beach Inn, in the Town of Babylon, Long Island, New York.
The drink has a much higher alcohol concentration (~28%) than most cocktails because of the proportionally small amount of mixer.
This cocktail is often altered in other countries, due to the unpopularity of sour mix. Long Island Iced Tea served outside the States is often made of liquors and cola alone (without sour mix), with lemon or lime juice, or with lime cordial.