This is a small list of some of the best sagre or food festivals around Italy but there are many many many more; there must be 100 truffle festivals alone in various locations.
February
cioccolata in Florence, Tuscany
gnocchi in Verona, Veneto
gubana in Cividale del Friuli, Friuli Venezia Giulia
mandorle Agrigento, Sicily
migliaccio Sarripoli, in Tuscany
panicelli in Taranta Peligna, Abruzzo
March
bogamarì in Alghero, Sardinia
Graukäse in Campo Tures, Trentino-Alto Adige
Image by Carlo Raso