Using an outdoor grill, heat it to medium heat. While grill is heating, mix together your rub. In a small bowl, mix together the sugar, chili powder, cumin, salt, pepper and oil. Stir until everything is wet and it becomes a paste. Pat dry the pork loin with paper towels. On a pan, cover the pork with the rub on all sides. Prepare peaches by slicing in half and removing the pit.

Before putting the pork down on the hot grill, add a little oil or non-stick grilling spray to the grill grates. Grill the pork loin, on each side for approximately 10 minutes, or until internal temp of the pork reaches 145 degrees. (FYI - this is a new recommendation for pork, versus the old school 160.) Slightly pink is okay. The peaches only need 10 minutes to cook on the grill, so hold off putting them on until you flip the pork loin for its second side. Place peaches cut side down on the grill and remove after 10 minutes.

After the pork is done grilling, let it rest for 3-5 minutes to seal in the juices before cutting. Serve with the grilled peaches.