Reggianito is a very hard, granular, cows milk cheese from Argentina whose origins lie with immigrant Italians who wished to make a cheese reminiscent of their native Parmigiano-Reggiano. The name—the Spanish dimunitive of ‘Reggiano’—refers to the fact that the cheese is produced in small 15 lb (6.8 kg) wheels, rather than the huge Parmigiano-Reggiano drums.
The cheese, which is rather saltier than its Italian parent, is generally used for cooking or for grating over pasta dishes. The aging period of 5—6 months, although longer than that of any other South American hard cheese, is shorter than that of Parmigiano-Reggiano.