The Hanky Panky is a classic cocktail that was invented by Ada Coleman, head bartender at the American Bar in the Savoy Hotel in London, in the early 1900s. The Hanky Panky is a smooth and complex cocktail with herbal and spicy notes from the gin and Fernet-Branca, and a hint of sweetness from the vermouth. It has remained a popular drink among cocktail enthusiasts for over a century.