6
Cover the cake pan with aluminum foil. Cover skillet with lid and turn the control lever to HIGH. Once it reaches a boil (or when steam begins to rise from the gap between the pan and the lid), reduce heat to 320ºF, and steam for 15 minutes. Check the doneness by inserting a skewer. If it does not come out clean, continue to cook 5 more minutes and check again. Add more water if the water level is low. Be careful of the hot steam.