When cooking, black rice and white rice are mixed and boiled in water soaked in rice. My experience is that if you want to cook like this in my picture, the water should be three times that of rice; When the fire is boiling, don't open the lid, turn off the fire and simmer for about 1 hour, and then turn off the fire when the fire belt is rolled up; If you want to cook it thick, you should keep stirring the porridge in the pot, so that you can cook it for half an hour, and finally add rock sugar. Cook for a few minutes. Turn off the fire for a few minutes.