If you visit Italy in November or in December and look for seasonal food, you can’t miss chestnuts. You can taste roasted chestnuts all across the country; street vendors are everywhere, especially in the streets of art cities.
Better, you could accompany roasted chestnuts with “vino novello” (a kind of new wine; its season starts each year on November 6).
Also you can taste chestnuts dishes and delicacies in a number of gastronomic festivals taking place in Italy in this time (especially in the zones where chestnuts mostly grow, including Piedmont, Tuscany, Umbria, and Liguria).
If you would like to taste a very special sort of marrons glaces, in Rome you have the “fabbrica marrons glaces” (see website at www.marronglaces.it). The vendor of these baked chestnuts with sugar syrup is near tube station Lepanto, in via Paolo Emilio 67A, between via degli Scipioni and viale Giulio Cesare.