Instructions:
Marinate the chicken: In a bowl, mix the chicken pieces with light soy sauce, Chinese cooking wine, salt, sugar, sesame oil, and cornstarch. Mix well and let marinate for 10-15 minutes.
Steam the dish: Add the quartered shiitake mushrooms and sliced chili (if using) to the marinated chicken and mix well.
Transfer everything to a heat-proof serving plate and spread evenly.
Steam over high heat for 15-20 minutes, or until the chicken is cooked through.
Garnish and serve: Remove from the steamer, garnish with chopped scallions, and serve hot with rice.
