Rémy Martin XO is a premium French cognac made from a blend of up to 400 different eaux-de-vie, or grape brandies, aged between 10 and 37 years in French oak barrels. The cognac is known for its rich, complex flavors and aromas of fruit, spice, and oak, with a long, smooth finish. It is considered one of the finest and most prestigious cognacs in the world and is often enjoyed neat or on the rocks as a sipping drink. The cognac is also a popular choice for use in cocktails and can add depth and complexity to a range of mixed drinks.