Soy Sauce Poached Chicken ??? and Master Sauce ??

I love poached chicken, the meat is so juicy and tender. That is why I love Hainanese Chicken rice. Another of my favourite is soy sauce chicken (See Yau Gai ???). This poaching liquor is a mixture of light soy, dark soy, sugar and spices normally referred to as master sauce (lu sui ??). Chicken poached with this sauce is a lot more flavourful than just poaching with water or plain stock like