Allspice berries are the dried, unripe fruit of the Pimenta dioica tree, which is native to the Caribbean and Central America. These small, dark brown berries have a warm, sweet, and slightly pungent flavor that is reminiscent of a combination of cinnamon, nutmeg, and cloves. Allspice berries are often used in desserts, baked goods, and pickling, and they are also a popular ingredient in Caribbean and Middle Eastern cuisine. They are a good source of antioxidants and have been used in traditional medicine for centuries.