This version will have a crisp, bitter flavor with a crisp, bitter finish. A Lillet version will be smooth and floral, with citrus notes. If you want to make something with two different flavors, try mixing them together. This recipe yields a very potent drink, as described in the book. Ian Fleming intended to use Kina Lillet as a flavor modifier rather than dry vermouth for the martini. The cocktail is a mash-up of the classic gin martini and the vodka martini with a twist. In Ian Fleming’s James Bond novel Casino Royale, titled Vesper Cocktail, a description of the cocktail was first described in 1953. The Vesper is the signature drink of James Bond, and has been featured in several of the Ian Fleming novels and films. The drink was invented by Ian Fleming in the 1953 James Bond novel Casino Royale, and named after Bond’s love interest Vesper Lynd. A Vesper cocktail is a cocktail made of gin, vodka, and Lillet Blanc, a French aperitif.