The traditional South American dish made from raw fish is ceviche. Ceviche is prepared by marinating raw fish in citrus juices, typically lime or lemon, which "cooks" the fish through a process called denaturation. The dish is often combined with ingredients like onions, tomatoes, cilantro, and chili peppers, giving it a fresh and zesty flavor. Ceviche is popular in several South American countries, particularly Peru, where it is considered a national dish. This refreshing meal showcases the region's abundant seafood and is usually served with sides like sweet potatoes or corn.