Steamed herbal chicken

Name: Steamed herbal chicken
Prep time: 20 min
Cook time: 1 h
Total time: 1 h 20 min
Yield: 4
Cuisine: En
Ingredients: half a chicken, chopped into pieces; 5 slices of dang gui/ chinese angelica root; 1 tbsp wolfberries; 5 red dates, remove seeds; 2 tbsp oystersauce; 1/2 tsp salt; 1 tsp sesame oil; 3 tbsp shaoxing wine