Rinse the duck thoroughly and pat dry. Remove any remaining feathers. Trim off the wing tips, remove the skin around the neck, and discard any abdominal fat.
Wash the apples and prunes. Slice three apples thinly and cut two in half or quarters. Prepare an ovenproof baking sheet. Preheat the oven to 200–225 degrees Celsius.
Mix salt, pepper, thyme and rub the duck inside and out with this mixture.
Mix the apple slices with honey and add half of the prunes to the mixture. Stuff the bird with the prepared filling.
Secure the belly skin with skewers or toothpicks.
Place the stuffed bird on a baking sheet greased with sunflower oil or lined with foil.
Place the remaining apple quarters or halves, as well as the prunes, around the duck.
Cover the dish with foil. Place in the oven, preheated to 225 degrees Celsius.
After an hour of baking, remove the foil and pour the resulting broth over the dish.
Reduce the temperature to 180 degrees Celsius and roast the duck for another 15 minutes. Remove again and baste with broth. Repeat this step every 15 minutes.
Bake the bird for 2.5–3 hours until golden brown. If the skin begins to blister, pierce it with a fork or toothpick.