Stir-fry the sliced chicken in oil until fragrant, then drain and set aside.
Heat 2–3 tablespoons of oil and stir-fry the shallots and ginger slices until fragrant. Add the shiitake mushrooms and onion.
Add the Lee Kum Kee Black Bean Chicken Sauce and water. Return the chicken and stir-fry until heated through, then mix in the spring onion sections and serve.