Refrigerator: wrap leftover Christmas Tree Cinnamon Rolls in plastic wrap and store in the refrigerator for up to 3 days. Freezer: wrap leftover cinnamon rolls in plastic wrap and store in the freezer for up to 1 month. To thaw, transfer to the fridge overnight. To Reheat: for a single portion, you can reheat in the microwave until warm. (Note: If they have candy pieces on them, try and remove them prior to reheating.) Otherwise, add the entire pan of rolls back into the oven at 300 degrees for about 10-15 minutes, or until warmed through.