Prepare ham the night before by trimming away some of the excess fat, but leave as much skin as possible. Salt the meat to taste; cut small slashes into the ham and wedge in the slivers of garlic. Mix a marinade of minced garlic, lemon and lime juice. Pour over meat, cover tightly with foil, and refrigerate overnight. When ready to cook, heat the oven to 150ºC . Roast the meat about three hours, basting evry half hour. Bring the center of the ham to 70ºC degrees (use a meat thermometer to check temperature). Just before removing the ham from the oven, raise the heat to crisp the skin. Based on 30 servings: 627 calories, 60 g protein, 40 g fat,
1.5 g carbohydrate, 216 mg cholesterol, 439 mg sodium.