2) Remove the peaches with a slotted spoon and place in a bowl of cold water to stop the cooking.
3) Peel the peaches and then slice them in wedges off the stone and into a bowl. Stir in the sugar, Sauternes and orange liqueur.
4) Cover and refrigerate for at least 2 hours, or overnight. Serve cool but not cold, with a scoop of creme fraiche or cream.