Gorgonzola is a veined Italian blue cheese, made from unskimmed cow's milk. It can be buttery or firm, crumbly and quite salty, with a "bite" from its blue veining.
Gorgonzola has been produced for centuries in Gorgonzola, Milan, acquiring its greenish-blue marbling in the 11th century. However, the town's claim of geographical origin is disputed by other localities.
Gorgonzola is typically aged for three to four months. The length of the ageing process determines the consistency of the cheese, which gets firmer as it ripens. There are two varieties of Gorgonzola, which differ mainly in their age: Gorgonzola Dolce (also called Sweet Gorgonzola) and Gorgonzola Piccante (also called Gorgonzola Naturale, Gorgonzola Montagna, or Mountain Gorgonzola).