This is best cooked on the barbecue and will serve 10 comfortably.

Cooking instructions: 

Take the lamb out of the fridge in advance and let it come up to room temperature. Over a hot barbecue place it skin side down and leave it for 10 minutes, keeping an eye on the flames. Flip it over and cook for a further 15 minutes, you may need to turn it a couple of times. Importantly leave it to rest for at least 10 minuets, loosely covered with foil, before carving.