Combine all the filling ingredients thoroughly, making sure that all ingredients are disperesed well. Allow the mixture to set in the refrigerator for at least an hour for better flavor.
Spread 1 1/2 tablespoons of the fillings on a wrapper and pleat the sides to surround the meat. Wet fingers to smooth off top of siu mai.
Place in a steamer, each 1/2 inch apart and steam for 20 minutes on high heat.