Sudachi is a small, round citrus fruit native to Japan. It is typically green when harvested and has a tart flavor, similar to that of a lime. Sudachi is often used in Japanese cuisine to enhance the taste of dishes, sauces, and beverages. The fruit is rich in vitamin C and is known for its aromatic zest. Sudachi is commonly used to season grilled fish, noodles, and salads, adding a refreshing citrus note. It is also popular in drinks, such as cocktails and soft beverages, providing a unique twist to traditional flavors.