For the filling, peel 4 onions and dice them coarsely. Wash and quarter 4 apples, cut out the core and roughly dice the flesh. Wash mugwort, shake dry and pluck leaves from 3 stems. Mix apples, onions, salt, pepper and sugar in a large bowl
Wash the goose thoroughly, clean it if necessary, dab dry and rub it with salt and pepper inside and out. Add the filling to the goose. Put the opening together with wooden skewers and tie up with kitchen string. Tie the legs together as well. Tie the wings on the back as desired
Peel 3 onions and cut into slices. Clean, wash and cut the leek into pieces. Peel, wash and chop carrots and celery. Wash and quarter 2 apples and cut out the core. Mix vegetables, apples, 2 stems of mugwort, salt and pepper. Spread into a fat pan or a flat large roasting pan
Put the goose in and roast it in the preheated oven (electric cooker: 100 °C/ circulating air: 75 °C/ gas: not possible) for about 7 hours. Open the oven (electric cooker: 175 °C/ convection oven: 150 °C). Fry for another 50-60 minutes. Arrange garnished with 1 stalk of mugwort