Sweet and Sour Pineapple Chicken is a popular Chinese restaurant recipe that combines the tangy flavors of pineapple with the savory taste of chicken. The dish is made by stir-frying chicken pieces with bell peppers, onions, and pineapple chunks in a sweet and sour sauce. The sauce is typically made with a combination of vinegar, ketchup, soy sauce, and sugar, giving it a perfect balance of sweet and tangy flavors. The chicken is cooked until tender and juicy, and the pineapple adds a refreshing burst of tropical flavor. This dish is often served with steamed rice or noodles, making it a delicious and satisfying meal.