Soak dried bird's nest in water for at least 3 hours, remove dirty substances carfully and drain well.
Marinade pork, and boil in hot water along with ham mince.Drain well.
Bring stock and water to the boil, put in rice and cook to form congee.
Bring congee to the boil, add in all ingredients, stir well and cok until it boils again. Add in seasonings and serve.