Most Chinese people love pommes dauphines and pommes duchesse.
I believe that they like the crusty on the outside and the softness on the inside. Also you should fry the pommes and Chinese people love fried food.
The two recipes are similars: potatoes, butter, flour, butter, egg.
Adding butter helps for more softness but beware the costs: butter is expensice.
I wouldn't add nutmeg. I think that most Chinese people don't like it at all and thus it is better not to use it.
I even saw some different colors.
It is a good way to improve presentation.