Preparing Smoked Sweet Onion Honey Glazed Ham is a rewarding process that results in a delicious meal. Follow these steps to create your masterpiece:

1. Preheat the Oven: Preheat your oven to 325°F (165°C).
2. Prepare the Ham: Place the fully cooked ham on a large roasting pan. Score the surface in a diamond pattern to allow the glaze to penetrate.
3. Sauté the Onions: In a skillet over medium heat, sauté the sliced sweet onions until they are soft and caramelized, about 8-10 minutes. Remove from heat and set aside.
4. Make the Glaze: In a bowl, combine honey, brown sugar, Dijon mustard, apple cider vinegar, ground cinnamon, ground ginger, black pepper, and salt. Mix until well combined.
5. Glaze the Ham: Brush half of the honey glaze over the surface of the ham, ensuring it gets into the scored cuts.
6. Add Onions: Spread the caramelized onions evenly over the top of the ham.
7. Cover and Bake: Cover the ham loosely with aluminum foil. Bake for about 1 hour and 15 minutes.
8. Baste the Ham: Every 20-30 minutes, baste the ham with the remaining glaze to enhance the flavor and moisture.
9. Uncover and Finish Cooking: Remove the foil during the last 20-30 minutes of cooking to allow the glaze to caramelize and form a beautiful crust.
10. Check for Doneness: The internal temperature of the ham should reach 140°F (60°C). If using a meat thermometer, insert it into the thickest part of the ham.
11. Rest the Ham: Once done, remove the ham from the oven and let it rest for about 15 minutes before slicing. This allows the juices to redistribute, ensuring a moist and flavorful ham.
12. Slice and Serve: Slice the ham into thick pieces and serve with the caramelized onions on top.