Dubonnet Rouge is a French aperitif wine that is made from a blend of fortified wine, herbs, and spices. It has a rich, complex flavor with notes of fruit and spice. In cocktails, Dubonnet Rouge is often used as a substitute for sweet vermouth in classic recipes like the Manhattan or the Negroni. It can also be enjoyed on its own or with a splash of soda water as a refreshing aperitif.