He’ll be king and she’ll be queen, it’s as simple as that.
A teaspoon of dried ginger in the mix adds a lot of flavour but no actual taste of the ginger.
Peking duck is not a type of duck but a way of cooking it in Chinese cuisine. Mallard duck is a type of wild duck and thus might present problems with kashrus as they tend to ingest items that cause internal injuries. As I understand it, the common domesticated ducks reared on commercial farms are kosher and therefore so are the eggs.