Remove any netting or string from the ham. Let sit out at room temperature for 1 hour before cooking.
Preheat the oven to 325°F (160°C).
Place the ham in Oval Dutch Oven and add the water. Cover and bake on the lower rack of the oven for 1 hour (see note).
Meanwhile, in a pot, combine the maple syrup, chicken broth, orange juice, mustard, vinegar, spices and rosemary. Bring to a boil. Let simmer gently until the sauce is thick and syrupy, about 45 minutes. Remove the star anise and rosemary. Adjust the seasoning.
Remove the cover from the Dutch Oven. Transfer the ham to a cutting board and peel off the pork rind to reveal the layer of fat underneath. Using a sharp knife, score the fat in a crisscross pattern, cutting just slightly into the flesh. Discard all of the cooking juices that have accumulated in the Dutch Oven. Return the ham to the French Oven.
Brush the top of the ham with a generous amount of the maple glaze. Continue to cook the ham until a thermometer inserted in the thickest part without touching bone reaches 160°F (71°C), about 1 hour 30 minutes (see note). Brush the ham with the remaining glaze every 30 minutes as it cooks.
Remove the ham from the oven and let rest for at least 15 minutes before slicing and serving.
Notes:
If the ham is too tall for the Dutch Oven lid to fit snuggly, cover tightly with foil.
Cooking time will vary depending on the size of your ham. You should calculate your total cooking time based on about 20 minutes per pound.