01 - Wash the oranges thoroughly under running water. Using a sharp knife, slice off the top and bottom of each orange. Score the skin into quarters and carefully peel away the rind, keeping a portion of the white pith attached for texture.
02 - Slice the peels into uniform strips approximately ¼ inch (0.5 cm) wide for even candying.
03 - Place the strips in a saucepan and cover with cold water. Bring to a boil, then drain completely. Repeat this blanching process two more times to remove excess bitterness from the pith.
04 - In a clean saucepan, combine the granulated sugar and water. Stir over medium heat until the sugar has fully dissolved and the mixture is clear.
05 - Add the blanched orange peels to the sugar syrup. Simmer uncovered for 45 to 60 minutes, stirring occasionally, until the peels appear translucent and feel tender throughout.
06 - Using tongs or a fork, transfer the candied peels to a wire rack set over a sheet of parchment paper. Allow them to dry at room temperature for at least 2 hours, or ideally overnight, until no longer sticky to the touch.
07 - Place the chopped dark chocolate in a heatproof bowl set over a pot of barely simmering water, ensuring the bowl does not touch the water. Stir occasionally until the chocolate is completely melted and smooth.
08 - Dip each candied orange peel strip halfway into the melted chocolate, allowing the excess to drip back into the bowl. Place each piece on a parchment-lined tray.
09 - Let the chocolate set completely at room temperature, or refrigerate the tray for 15 to 20 minutes to speed up the process. Once set, store the finished peels in an airtight container in a cool, dry place for up to 2 weeks.