French Roast Lamb

Directions

1. 1
   Trim ALL EXCESS fat from the lamb.
2. 2
   (leave SOME fat on to protect the meat while cooking) Heat the butter in a small pan, add the onion and fry gently until soft.
3. 3
   Remove from the heat and stir in the mustard and chopped herbs.
4. 4
   Whisk egg white until stiff.
5. 5
   Add the mustard and herb mixture and fold together until combined.
6. 6
   Place lamb on a rack in a roasting pan, and grind over with black pepper.
7. 7
   Spread the egg-white mixture evenly over the top surface of the lamb.
8. 8
   Roast the lamb for 50 minutes if you want it to be rare, 1 hour if you want it to be medium, or an hour and 10 minutes if you want it well done.
9. 9
   Place lamb on a serving plate and LEAVE to rest for 5 minutes.
10. 10
    Garnish with srigs of rosemary and thyme and slice down between the bones to serve.