The Gin Dui are fried in oil and eaten quickly.

"The gin dui they make on Chinese New Year is exceptional–that delicate crunch, a thin layer of chewy mochi and air encircling fillings of coconut,
black sugar, or pork. You can’t get this in a restaurant, and it stays hot and fabulous for up to an hour if you’re lucky."

Melissa Chang, Urban Mix Plate Blog, http://urbanmixplate.honadvblogs.com/