Gà tiềm hấp - Steamed Chicken Leg Quarters W/ Oyster Sauce

2 Dui ga - Chicken Legs 3 oz Soy Sauce - Si Dau 2 Tbs Giam Trang - White Vinegar __________________ 1 -1/2 Tsp Muoi - Salt 2 Tsp Bot Nem Ga - Chicken Powder 3 -1/2 Tsp Duong - Sugar 1-1/2 Tbs Dau Hao - Oyster Sauce 1-1/2 Tbs Hoisin Sauce 8 - 10 oz = 240-300 grams Nuoc - Water 4 Mieng - Pieces Orange Dried Skin - Vo Cam 4 Mieng trai Hoi - Dried Star Anise - Pieces 1/3 Tsp Tieu Den - Black Pepper Hanh xanh - Some Green Oinion 4 Mieng Gung - Gingers Time: Steam 60 - 70 Minutes - Phut.