Butterflied Southern Citrus Barbecue
["6 to 9 lb. butterflied leg lamb", "1 1/2 c. grapefruit juice", "3 Tbsp. brown sugar", "1 Tbsp. grated grapefruit or lemon peel", "2 cloves garlic, minced", "1 tsp. ground cloves", "1 tsp. ground allspice", "1/2 tsp. salt", "1/4 tsp. ground pepper", "few drops hot pepper sauce"]
["Place lamb in large glass or enamel bowl.", "In measuring cup, combine remaining ingredients; pour over lamb.", "Cover and refrigerate several hours or overnight.", "Drain lamb, reserving marinade.", "Grill lamb 4 to 6 inches above coals or source of heat for 1 hour and 15 minutes or until meat thermometer inserted in thickest part registers 140\u00b0 for rare or 150\u00b0 to 155\u00b0 for medium. Baste with marinade."]
["butterflied leg lamb", "grapefruit juice", "brown sugar", "grated grapefruit", "garlic", "ground cloves", "ground allspice", "salt", "ground pepper", "pepper"]