Tomatillos are small, round fruits that belong to the nightshade family, which also includes tomatoes and potatoes. They are typically green or yellow and are encased in a papery husk that resembles a lantern. Tomatillos have a tangy flavor and are often used in salsas and sauces, particularly in Mexican cuisine. These fruits are rich in vitamins C and K, as well as antioxidants. Tomatillos are usually harvested when they are firm and the husk is dry. They can be eaten raw or cooked, making them a versatile ingredient in various dishes.