This innovative recipe takes the classic sweet and sour chicken to a whole new level. Instead of deep-frying the chicken, it is stir-fried with a delicious sauce made from a combination of sweet and tangy ingredients. The result is a healthier and lighter version of the traditional dish. The chicken is marinated in a mixture of soy sauce, vinegar, and sugar, which gives it a wonderful flavor. It is then stir-fried with colorful bell peppers, pineapple chunks, and onions, creating a vibrant and visually appealing dish. The sauce is made from a combination of ketchup, pineapple juice, vinegar, and sugar, which gives it a perfect balance of sweetness and tanginess. This sweet and sour chicken stir-fry is quick and easy to make, making it a perfect weeknight dinner option. Serve it over steamed rice for a complete and satisfying meal.