Long Vodka is vodka

Vodka

Vodka , is a distilled beverage. It is composed primarily of water and ethanol with traces of impurities and flavorings. Vodka is made by the distillation of fermented substances such as grains, potatoes, or sometimes fruits....

-based cocktail

Cocktail

A cocktail is an alcoholic mixed drink that contains two or more ingredients—at least one of the ingredients must be a spirit.Cocktails were originally a mixture of spirits, sugar, water, and bitters. The word has come to mean almost any mixed drink that contains alcohol...

, popular throughout Scotland

Scotland

Scotland is a country that is part of the United Kingdom. Occupying the northern third of the island of Great Britain, it shares a border with England to the south and is bounded by the North Sea to the east, the Atlantic Ocean to the north and west, and the North Channel and Irish Sea to the...

 and known to be served in some parts of England.

Preparation

A long vodka is made by adding lemonade or soda water and lime cordial

Lime cordial

Lime cordial is a mixture of concentrated lime and sugar, sometimes used as a mixer for cocktail. While lime cordial can be diluted and consumed with vodka or water, any liquid will suffice....

 to 1 or 2 shots of vodka on ice. The glass can either be rinsed (and then emptied) with angostura bitters

Angostura bitters

Angostura bitters, often simply referred to as angostura, is a concentrated bitters made of water, 44.7% alcohol, gentian root, and vegetable flavoring extracts by House of Angostura in Trinidad and Tobago. They are typically used for flavoring beverages, or food...

or 2-3 drops of are added to taste, distinguishing the drink from a vodka lime and lemonade.