Preparation time 40 minutes (plus cooling time), cooking time 2 hours 45 minutes
1) Make a decorative cut through ham rind about 10cm from the shank end of leg. Make a shallow cut down centre of ham from one end to the other.
2) Place ham in disposable baking dish. Cook in covered barbecue, using indirect heat, following manufacturer’s instructions, about 45 minutes or until skin begins to split.
3) Remove from barbecue, cool 15 minutes. Peel skin away from ham carefully, leaving shank end intact, discard skin. Do not cut through surface of top fat, or fat will spread during cooking. Secure orange slices with cloves in decorative pattern on ham.
4) Wrap shank in foil, brush ham with orange glaze. Cook, covered, brushing occasionally with glaze, about 2 hours or until orange slices are lightly caramelized and ham is heated through.
Orange glaze: Mix ingredients in small saucepan, stir over low heat until marmalade melts.