an Italian hard, granular cheese produced from cows’ milk and aged at least 12 months.

It is named after two of the areas which produce it, the provinces of Parma and Reggio Emilia (Parmigiano is the Italian adjective for Parma and Reggiano that for Reggio Emilia). In addition to Reggio Emilia and Parma, it is also produced in the part of Bologna west of the River Reno and in Modena (all of the above being located in the Emilia-Romagna region), as well as in the part of Mantua (Lombardy) which is on the south bank of the River Po.