1. Trim fat from ham. Slash edges of ham at one inch intervals.
2. For glaze, in a small saucepan melt margarine or butter. Stir in preserves, mustard, and cloves. Heat through.
3. Preheat gas grill. Adjust heat for direct cooking. Place ham steak on grill rack over medium-high heat.
4. Cover and grill 10 minutes. Turn ham and brush with glaze. Grill for 6 to 8 minutes more or until heated through.
5. Makes 6 servings.