Store the candied peel in an airtight container in the refrigerator for up to 2 weeks.
The leftover syrup can be saved and used as a sweetener for tea, cocktails, or drizzled over ice cream.
For a less sweet version, you can roll the drained peel in granulated sugar before storing.
Ensure you remove as much white pith as possible when zesting to avoid bitterness in the final product.