Put peaches into a stewpan and cover them with water. In ten minutes remove the skins. Then place them in a shallow dish and cover them either with Madeira or Moselle wine and allow them to stand for at least two hours. Then drain them, place them in the dish in which they are to be served and cover them with vanilla sugar. Set the wine in which they have been soaked on the fire, add sugar to taste, and pour the sauce boiling over the peaches.