Wash red beans, glutinous rice, and kidney beans into a rice cooker for one night.
Because I am using a smart rice cooker, get up in the morning and open the porridge button to cook.
After cooking for half an hour, add the purple potato cut into cubes and continue to cook.
After another half an hour, add (red dates, raisins, etc.), rock sugar, milk, and cook for another half an hour, almost can be cooked.