Step 1: Preheat oven to 130C.

Step 2: Place a non-stick fry pan over a high heat and add 20 millilitres of Extra Virgin Olive Oil, once this is hot add the rosemary and onions and fry until well caramelised. Remove from heat and place into a mixing bowl.

Step 3: Using the same non-stick fry pan, place over a medium to high heat and add 20 millilitres of Extra Virgin Olive Oil and the butter. Once the butter has melted, add the quince and fry until golden in colour then deglaze with the 20 millilitres of Verjuice. Add the ginger and continue to cook for a further 2 minutes. Remove from heat and place into a mixing bowl with the onions.

Step 4: To the onions and pickled quinces, add the breadcrumbs, lemon rind, thyme and parsley and season with salt and cracked pepper. Mix well together. The stuffing should just hold together from the Extra Virgin Olive Oil that the onions and quinces were cooked in.

Step 5: Spread out the lamb shoulder on the bench and place the stuffing into the centre of the shoulder and tie up the shoulder just as if it were a parcel, to keep stuffing in place.

Step 6: Place the remaining 60 millitres of Extra Virgin Olive Oil into a non stick pan over a medium to high heat and gently seal the lamb on all sides.

Step 7: To make the basting mix, place the Verjuice, Extra Virgin Olive Oil and a pinch of sea salt and cracked pepper into a bowl and whisk together well, then brush over the lamb shoulder.

Step 8: Place the sealed lamb shoulder into a heavy based cast iron pot and cook in the preheated oven for 4 to 4 ½ hours, turning every half hour.

Step 9: The cooking time will depend entirely on the age of the lamb shoulder, the pot you use and your oven, so it could take a bit longer. It is finished when it is really soft to the touch.

Step 10: Allow the lamb to rest at least 30 minutes or preferably 1 hour by taking it out of the cooking vessel and covering. Use this time to take any unwanted fat from the cooking juices. Carve and serve moistened by cooking juices warmed just before serving.

Step 11: Great served with lentil salad.