When you have leftover chicken soup from before,you can use it to braise the mushrooms.If not, start by blanching the chicken first.Remove any grease and foam on the surface of the chicken.Discard these after skimming them off.Then pour the clear broth into a pressure cooker.Add seasonings like Sichuan pepper,star anise, cooking wine, and salt.Braise with the mushrooms.Hope this is helpful to you. Please consider it.Use spices like large star anise, cooking wine, and salt along with the mushrooms to simmer.I hope this helps you, please consider accepting it if it does.