2. Put the drained bird's nest in a stew pot, add appropriate amount of water, and the amount of water shall be slightly higher than the surface of the bird's nest, and stew it with slow fire until it is crystal clear and transparent, giving off a faint egg fragrance.

3. Put the rock sugar and the right amount of water in the pot, boil the rock sugar with a big fire, skim off the floating foam with a spoon, pour the bird's nest into the pot, boil it, and then turn to low heat for 20 minutes.