Mix the juice of one orange with honey, salt and pepper. Brush the duck with it, put an orange in the duck and place it breast down in a roasting pan.
Pour in soup, wine and ginger powder. Place in oven preheated to 200 °C and roast for 1.5 hours, basting frequently.
After half the roasting time, turn the duck on its back. Remove duck from roasting pan and keep warm.
Caramelize sugar in a pan until light brown and deglaze with the juice of an orange and a lemon and add to the roasting juices.
Bring to a boil and thicken with cornstarch. Season to taste with orange liqueur, add seasoning if necessary.
Carve the duck and arrange on a platter with the juice, garnish with the fourth orange (cut to taste).
Arrange the orange-honey duck and serve.