Cantonese Sweet and Sour Pork begins by marinating bite-sized pork pieces to enhance their tenderness. Sauté the marinated pork until it turns golden brown and is cooked through. Meanwhile, prepare a colorful medley of vegetables such as bell peppers, onions, and pineapple chunks. Stir-fry the vegetables until they are crisp-tender, maintaining their vibrant colors and satisfying crunch. This combination of tender pork and crispy vegetables adds a delightful textural contrast to the dish.