Perhaps Spain's most famous cheese, Manchego is a D.O. (Denominaciónde Origen) protected cheese, meaning the traditional recipe must use 100% Manchega sheep milk. Made using fresh, pasteurized sheep's milk, this Manchego develops a rich nuttiness and pleasant gaminess after over a year of aging. Firm enough to grate, you can highlight its caramel-like flavor anywhere you would use Parmigiano.