Score the peach skin and place the peaches briefly in boiling water. Rinse cold and remove the skin. Cut peaches in half and stone them. Puree with peach liqueur, lemon juice and sugar. Sort blueberries, wash and drain. Mix cream-fraîche and cream, put into a small freezer bag and cut off a tip.
Arrange the peach puree on plates and sprinkle with crème-fraîche circles. Pull through with a wooden skewer. Arrange ice cream scoops on top, sprinkle blueberries on top. Decorate with blueberry leaves and peach wedges. Serve immediately