Since the meat is already cooked, it seems like it isn't going to readily attache itself to anything. Egg will bind in and around the meat as it cooks. Maybe mixing egg with some pork fat will work.
CD
I think I like it! I might even try mixing egg and applesauce with a little rub!
I don't know that I would use applesauce, because it is full of water. You need protein and fat to bind that pork, IMO. I think water will work against you.
CD