Lillet is a French aperitif wine that is often used in cocktails for its unique and versatile flavor profile. It is a blend of Bordeaux wines and citrus liqueurs, resulting in a mildly sweet and aromatic beverage. Lillet comes in several varieties, with Lillet Blanc (white) being the most commonly used in cocktails. Lillet Rouge (red) and Lillet Rosé (rosé) are also available, each bringing its own distinct characteristics to mixed drinks.

When used in cocktails, Lillet adds a sophisticated layer of flavor that can complement a wide range of spirits and mixers. It is often featured in classic cocktails such as the Vesper Martini, where it pairs with gin and vodka to create a balanced and aromatic drink. The aperitif's citrus and floral notes make it an excellent ingredient for refreshing, summery cocktails, often garnished with a slice of orange or lemon to enhance its natural flavors. Whether used as a primary ingredient or a subtle accent, Lillet enhances cocktails with its elegant and complex taste.