Add the maple syrup, mustard, brown sugar, orange zest, rosemary and black pepper to a small mixing bowl and mix thoroughly with a whisk.
Place the ham into the Dutch Oven (cut side down) and brush all over with the glaze until all the glaze is gone.
Place the lid on the Dutch Oven and place in the oven. Cook for 15 minutes per pound - or until an internal thermometer reads an internal temperature of 145°F.
Notes
When I opened this ham for photography, there was no net holding it together (weird). Every ham I ever got was already trussed for you. I had to do this with my kitchen string, very messily as I'm not the best at this. Otherwise my ham would have slid around in the pot.I added the rosemary and orange slices for garnish, after the cooking period.