Preheat the oven to 325 degrees F.
Score the surface of the ham in a diamond pattern about 1/8 inch deep. Stud the top of the ham with the cloves, then put it in a roasting pan with a rack, tent it with foil and bake for 1 hour.
Heat the honey, ginger ale, mustard and vinegar in a small saucepan until bubbly. Cook until reduced and a bit thicker, 10 to 15 minutes.
Remove the foil and brush the glaze on the ham. Return it to the oven for 15 minutes. Repeat once more. Remove it from the oven and let it rest/cool slightly.
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