Sherry
Sherry is wine made from white grapes. The grape variety Palomino features prominently in dry versions, while sweet versions like cream sherry might include Pedro Ximenez (PX) and Moscatel.
Sherries are aged is unique system called the solera, where barrels of fortified wines sit for years at ambient temperatures. Portions of the wine are periodically removed from the oldest barrels for bottling, with new stocks added to keep the solera going.