1. Remove the hair on the wax gourd and cut it into pieces.
2. Heat up the oil in a pan, add ginger slices and sauté.
3. Saute the Pixian bean paste.
4. Add winter melon and stir fry quickly.
5. Put in the water that hasn't had the winter melon. Add oyster sauce. Let the extract taste better. Add the shallots after the water has boiled. The whole process is simmered over high heat.
6. Cook it for about ten minutes. Winter melon is very soft.