The recipe for this world-famous alcoholic cocktail made from whiskey (bourbon), vermouth and shandy dates back to the end of the 19th century, in a bar in New York called the Manhattan. A very interesting fact is that the cocktail was invented at a party hosted by Winston Churchill's mother. These days, the recipe for the cocktail varies quite a bit, as does the method of making it, with some people preferring to whip it and others simply blending it. In fact, most bartenders around the world love to experiment with this cocktail and discover new flavours.