Sweet and Sour Chicken Liver is a flavorful and tangy Chinese dish made with tender chicken liver cooked in a sweet and sour sauce. The chicken liver is first marinated in a mixture of soy sauce, ginger, and garlic, then stir-fried until cooked. The sweet and sour sauce is made with vinegar, sugar, ketchup, and other seasonings, giving the dish its signature tangy flavor. Sweet and Sour Chicken Liver is often served as a side dish or appetizer and pairs well with steamed rice or noodles.