Barbecued Butterflied Leg of Lamb with Mint

      1    Leg of lamb (5-6 lb)*                    Fresh mint sprigs (opt)
    3/4 c  Balsamic vinegar                         Salt
    1/3 c  Mint jelly                               Pepper
    1/3 c  Minced fresh mint leaves              sm Pocket bread**

  * - boned and trimmed of surface fat
  ** - or regular pocket bread, cut in half crosswise

  1. Lay meat boned side up. Slash about halfway through thickest
  portions, as needed, and pull meat, patting cut edges down, to
  make the piece relatively even.

  2. Place lamb in a 9x13" pan. In a 1 1/2 quart pan over medium-high heat,
  stir vinegar with 1/3 cup mint jelly just until boiling. Stir in mint and
  pour evenly over lamb. Cover and chill 2 hours or up to a day. Turn meat
  over occasionally.

  3. On firegrate in a barbecue, with a lid, ignite 50-60 charcoal briquets.
  When briquets are dotted with ash, in about 30 minutes, spread them into a
  single layer; scatter 10-12 more briquets over coals. Set grill 5-6" above
  coals. Lift meat onto grill; reserve marinade. Put lid on barbecue and open
  vents.

  4.Turn meat as needed to brown evenly; baste with marinade. Cook until
  thickest part of meat is done to your liking; for rare (140' on a
  thermometer) in center of thickest part, allow about 40 minutes total.
  Thinner sections will be well done.

  5. Transfer lamb to a platter and let rest 5-10 minutes. Garnish with mint
  sprigs. Slice meat thin. Season to taste with mint jelly, salt, and pepper.
  Eat with knife and fork or tuck into pocket bread.