Shanghai-style sweet and sour pork is a popular Chinese dish characterized by tender and crispy pieces of pork, vegetables, and a sticky sweet and sour sauce. The pork is typically coated in a mixture of cornstarch, egg, and soy sauce, and then deep-fried until golden and crispy. The sauce is made from a combination of sugar, vinegar, ketchup, and soy sauce, which creates a tangy and slightly sweet flavor. The dish is often served with steamed rice and garnished with scallions or sesame seeds.