The best way to reheat this sandwich is in an air fryer. Refrigerated sandwiches should be reheated at 340 degrees for ten minutes. If the center is still cold, air fry for one minute at a time at 340 degrees until cooked through. For frozen sandwiches, remove the top waffle and place the two halves of the sandwich in the basket of your air fryer. Air fryer at 350 degrees for ten minutes. If still cold in the center, cook for one additional minute at a time until warmed through.