2. Soak lily, lotus seed and mung bean half an hour in advance, remove and drain for later use.
3. Put lily, lotus seeds and mung beans into the pot, add appropriate amount of water and brown sugar slices, and cook for 20 minutes.
4. Peel and slice the wax gourd.
5. Pour the cooked soup into the pot and add the wax gourd.
6, add red dates, after the fire is boiled, turn to low heat for 10 minutes.