Vin de Liqueur is a type of fortified wine that is sweetened and often flavored with various herbs, fruits, or spices. It is typically produced by adding a distilled spirit, such as brandy, to the wine, which stops fermentation and preserves the natural sugars. This process results in a rich, sweet beverage that can be enjoyed on its own or used in cocktails. These wines are often enjoyed as aperitifs or digestifs and can vary widely in flavor and sweetness. Popular examples of Vin de Liqueur include Port, Madeira, and Marsala, each with its unique characteristics and production methods.