Foil-wrapped herbal chicken

I got the recipe and inspiration to prepare this dish from my sister-in-law (谢谢大嫂!) but I think this is one dish which doesn't really have a fixed recipe. It's interesting making some changes to the ingredients and seasonings and the herbal chicken turns out slightly different each time. For a more herbal taste, I threw in some yuzhu, dang shen, gouji berries and chinese mushrooms. On some days I would add in hua diao wine, or I would use more five spice powder and no herbs. This is a great one dish meal for lazy days!