Preheat oven to 325 F. Line a roasting pan with aluminum foil and place the rack inside of the foil. Place the ham, fatty side up, on the rack. Insert a roasting thermometer into the thickest part of the ham that has not been sliced. Place the ham in the heated oven and roast for 1  1/2-2 hours or until the thermometer reaches 140-145.

While the ham is roasting, whisk together the brown sugar, cloves, juice, zest, mustard, vinegar, and oil or bacon drippings. When the ham has about 30 minutes to go, remove the ham and brush the glaze on the outside of the ham, all the way down into the slices. Place the ham back in the oven and cook until done.

When done, remove from the oven and serve with dipping sauce.