It's a mini-version of this Cantonese
Roast Duck recipe.
I simplified it into two steps - the first is a dry rub on the underside with Five Spice and ginger powder then a sit in the fridge for an hour. For the second, I combine the liquid marinade from the recipe with maltose to make the glaze which I rub over the skin side of the chicken. So that consists of a some whole spices fried briefly in oil (ginger, garlic, star anise, bay, cinnamon, dried orange peel) then mixed with some other pantry ingredients (Hoisin, Chi Hou, Fermented bean curd, black bean sauce, shaoxing). That sits in the fridge for an hour then I blast it skin down at 230C for 10 mins, then turn it over, another 10 mins, then 4 minutes at full blast grill/broil. A short rest then carve. It definitely has the tastes of Chinatown and was a big hit!
(BTW it's Chinese New Year celebrations round here, so I made this for our reunion dinner which I was hosting this year).