Cooking method
1. Wash all the materials, soak them in clear water 1 hour, and then drain the water.
2. Put all the materials into proper amount of water, boil with strong fire, and then turn to slow fire for about 2 hours.
3. Add a proper amount of rock sugar, and it will become delicious syrup after dissolution.
4. You can add coconut milk or light milk at will, which tastes better.