Shanghai-style sweet and sour chicken is a popular dish that combines the flavors of tangy sweetness and savory chicken. The chicken is coated in a crispy batter, then stir-fried with bell peppers, onions, and pineapple chunks. The sauce is made with a combination of vinegar, ketchup, sugar, and soy sauce, giving it a perfect balance of flavors. This dish is best served with steamed rice or fried rice.