Brussels sprouts are a favorite winter vegetable. Their flavor improves with the cold weather, and they are harvested into late November. Look for firm, brightly colored sprouts, and store them in a bag in the refrigerator, where they will keep for 2+ weeks. Find Maine-grown Brussels sprouts in farm stores, farmers’ markets, and local groceries. Serve them grated in fresh salads, steamed, or (best of all) roasted in the oven for a sweet, caramelized finish.