Add a small amount of oil and rock sugar to a hot pot and stir-fry slowly until the sugar is completely melted and browned, then add ribs and stir-fry until the surface is browned, add ginger slices and aniseed and stir-fry until slightly browned, then add soaked mushrooms and soaked water, boil over high fire, cover the pot and stew for 15 minutes, then take out aniseed and ginger slices, add rice cakes and stir-fry evenly, and cook for 5 minutes.