This way of cooking ham usually gets nibbled right out of the fridge until it's gone at our house.
Put your ham in a roasting pan or a dutch oven that you have sprayed with cooking spray or rubbed with some oil or shortening.
Put a small jar or 1 cup of orange marmalade over the top of the ham and sprinkle with pepper.
Cover and Bake at 325 degrees (this is considered a 'slow oven' and similar to using a crockpot on high) -until the glaze is thin and saucy, basting about every 30 minutes with a spoon until cooked or throughly heated through. (I don't know if your ham is cured). Bake 15 more minutes uncovered to thicken sauce a bit, and let sit 15 minutes before carving into thin or thick slices. Serve with the sauce poured over the top ham slices.
Serve it with a fresh salad and sweet potato. I like to make baked sweet potato cottage fries or jojos by slicing the washed potato into 4-6 wedges, spray with cooking spray or drizzle with olive oil and season with salt and pepper. Bake at 375-400 until soft and golden brown.
Leftover ham from this recipe is wonderful sliced and fried with hashbrowns. You can also add the ham to baked beans or with much of the glaze removed (just wipe it off) to potato soup, minced in a cheese and ham omelet, scrambled in eggs, pasta salad ingredient when diced or cut into thin strands, added to split pea soup, or of course SANDWICHES.