Cold Roast Duck with Rice Pilaff

• 1 (4 lb) (2 kg) oven-ready duckling
• salt

Remove the giblets from inside the duckling. Wipe the bird and rub the skin with salt. Prick well all over with a fork, put in a roasting tin and add 2 tablespoons of water. Roast in the centre of a moderate oven (350°F, 180°C or Gas No. 4) for 20 minutes per