For generations, the farmers of Cannara in the province of Perugia have been putting bulbs into the fertile clay. The red, golden or flat-round onions, which are harvested around six months later, are known beyond the region for their mild-sweet taste and good digestibility. They can be eaten raw, in salads, sauces or risotto and even come on the table as a fine onion jam.

The importance of the onion for the city is underlined by the Cipollari, the onion farmers, with their festival at the beginning of September: for a fortnight, the producers present onions at a market, but also other agricultural products of the region, such as the local wine Colli Martani Vernaccia.

Gastronomic stalls offer onion dishes, and a cooking show is also held in the San Sebastiano auditorium.
Piazza San Matteo, with its 13th-century church remodelled from 1788 to 1793, is the scene of jazz concerts and dance performances. Piazza Cavour hosts folkloric performances.