Award-winning bartender, innovator and a leader of the craft cocktail movement, Charles Joly loves infusing aromatic ingredients into spirits to add layers of flavor to even the simplest of cocktails, like this variation on the classic martini. His infuser created for Williams Sonoma has built-in strainers so you can easily flavor gin with a mixture of herbs, citrus and berries. The gin and vermouth need about 24 hours to steep in the aromatics, so plan to start this drink a day in advance. One infuser makes about 12 cocktails.