There are a number of hard cheeses on the market that are sold under the name "parmesan." These are not to be confused with true Parmigiano-Reggiano, a protected cheese that can only be produced in Emilia-Romagna and Lombardia in Italy. Aged for a minimum of 12 months and a maximum of 36, it's a hard, dry, crumbly cheese that has great crunch and deep caramel-y, nutty flavors.

Best Uses: Grated on salads and pastas. The harder, saltier rinds are perfect for adding flavor to many Italian soups.