Roasted chestnuts are a popular snack, especially during the fall and winter months. They are made by roasting the seeds of the chestnut tree, which are encased in a hard, spiky shell. When cooked, the outer shell splits open, revealing a soft, sweet, and nutty interior. Traditionally, roasted chestnuts are sold by street vendors in many cities, often served warm in paper bags. They can also be prepared at home by scoring the shells and baking or roasting them until tender. This treat is enjoyed for its unique flavor and comforting aroma, often associated with holiday festivities.