Sweet and Sour Chicken Stir-Fry is a quick and easy recipe that combines tender chicken pieces with a tangy and flavorful sauce. The chicken is stir-fried until golden brown and then tossed with a vibrant sauce made from a combination of vinegar, ketchup, sugar, and soy sauce. The result is a deliciously balanced dish that is both sweet and sour, with a hint of savory umami. Serve this stir-fry over steamed rice or noodles for a complete meal that the whole family will love.