Maestro bartender Salvatore Calabrese creates the world's most expensive cocktail -- Salvatore's Legacy -- at his bar at The Playboy Club in Mayfair from 40ml of 1788 Clos de Griffier Vieux Cognac, 20ml of 1770 Kummel Liqueur, 20ml of 1860 Dubb Orange Curacao and two dashes of Angostura Bitters from the 1900s.

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