8. Lastly, put some mixture patty on the plate, level off and the thickness of the patty is around 1 inch. Boil some water in a pot. When the water is boiling, put a stand or rack into the water and put the plate on the stand. Steam it for 15-20 minutes depending on the thickness of the patty. (I normally time it for 15 minutes.) Or, steam it in the rice cooker during the rice cooking process.