Select a duck with whole skin.First the ducks are rubbed with spices,salt and sugar,and then kept hung in the air for some time.Cuts open the belly and draw,and then insert a 2 inch long piece of wood to support the chest bone and to stretch the skin.Hook the duck by the neck,spread diluted maltose over it.Hang the duck in an airy place to dry.
The stuffed duck is hung in the roaster and kettles of hot water are placed in front to fill out the duck.Proper timing and temperature are important and the duck is turned often enough to roast them completely and evenly.(Try 350°F turn every 15 minutes,total roasting time about 40 minutes).Roast until golden brown with rich grease perspiring outside and have a nice odor.