Method

1. Remove the pork from the refrigerator one hour before cooking and dry the skin with a piece of kitchen towel. Place the sliced onion into an AGA roasting tin with the rosemary and place the pork on top. Brush with a little oil and sprinkle with salt.

2. Slide the pork into the centre of the Roasting Oven and roast for 45 minutes, add the red onions and transfer to the Baking Oven for about 1½ hours.

3. Check the pork is cooked through and leave to rest for 15-30 minutes next to the AGA before carving. For the apple accompaniment, melt the butter and sugar together and cook for 3-4 minutes on the Simmering Plate then add the apples, turn to cover and cook until the apples begin to go translucent, about 5 minutes. Serve with the pork.

4. Make a gravy using the meat juices together with the rosemary and onion then strain into a sauce pot.

Conventional cooking
Roast at 200ºC (400ºF), fan oven 180ºC, Gas Mark 6 for 30 minutes per 450g (1 lb).