1. Red beans are soaked in cold water for one day;
2. Wash and put it in a pressure cooker, put 2 small pieces of rock sugar and appropriate amount of water;
3. Cook on high fire for 40 minutes;
4. Prepare sago and milk;
5. Pour the milk into the bowl;
6. Put the cooked red beans into a small bowl for later use;
7. Boil the water and put sago and red beans into the pressure cooker;
After 8 or 20 minutes, you can eat it.