In a large container dissolve buttermilk powder, sugar, and salt in the hot water, followed by thyme, allspice, and cold water.
Add the pork and cover, and store in the refrigerator overnight.
After brining, wash and dry thoroughly and scour the skin with a sharp knife.
Grind together all the marinade ingredients in a blender then massage it onto the pork and let it sit for 4 hrs.
Remove excess marinade from the pork before grilling.
Preheat oven to 375 degrees F
Place the pork on a grill skin side down and sear all sides.
Place pork into a covered roasting pan with a tray and water underneath to catch the drippings.
After 2 hours of cooking strain most of the drippings from the pork into a pot with the marinade, honey, and mustard.
Put the meat back in the oven for another 1 ½ hrs.
Cook cause until rich and thick, then set aside.
After the last hour of cooking remove the cover and baste the pork in the Dijon sauce
Caramelize at 500 for 5-8 mins.
Allow the pork to rest for 15 minutes before chopping up.