Make the tremella into pieces
Wash Chinese- date
Wash medlar
Put all the ingredients above into a big pot and cook it with a lot of water. When the water boil, change the fire into small , cook it for one to two hours till the soup become viscous liquid and add the crystal sauger till all of it melt.
Other ingredient u can put into: lotus seed or pawpaw or snow pear
Use a deep pot to cook