Slice Bok Choy into half and cut Shiitake mushroom
Chop green onion and garlic into small pieces
Boil water, add 1tsp salt, blanch Bok Choy(cook for 1 minute), and plate bok choy in a shape you like. Blanch mushroom(cook in boiling water 2 minutes) set aside
In a pan, add oil and fry garlic, green onion until slightly brown. Add 1 cup of water to the pan. Add oyster sauce 2 tbsp, soy sauce 1 tbsp, Chinese five spice 1/4 tsp, salt 1/2 tsp add shiitake mushroom, boil for 5 minutes,
Add starch water and stir well to thicken the sauce. Turn off fire as soon as the sauce is thickened
Place mushrooms on the plate with the bok choy, add sauce to the plate.
Serve hot