Score the fat on the roast.  Whisk mustard, jelly, sugar, oil, garlic, thyme, salt and pepper in a medium bowl. Reserve 1/3 of the mixture for serving.  Coat the meat completely with half of the remaining mustard mix.  Save the other half for cooking.
To Freeze: Freeze in freezer safe container
To Reheat: Heat gas grill on all burners for 15 mins.  Brown roast all over. Turn pork, fat side up, leave only primary burner on high, move roast over “off “ burner.  Brush with 1/3 remaining mixture, cover, cook.  Brush with mustard mixture every 10 mins, until meat registers 140 (35-50 mins). Remove from grill, set pork under foil tent for 15 mins.  Add accumulated juices to serving mustard, whisk.
