It takes 7 to 8 minutes to cook the dumplings if they are boiled, and about 10 minutes if they are steamed. To avoid the dumplings from sticking to the steamer tray, you can brush a thin layer of oil on the steamer tray before placing the dumplings in the steamer tray.
Then put cool water in the steamer and wait for it to boil before putting the steamer tray in, so that the steamed dumplings won't collapse and will look fuller. Steam about 10 minutes, you can get out of the pot. Finally, according to personal preference sprinkle some sesame seeds or coconut can be.