01 - Wash the oranges thoroughly under running water. Using a sharp knife, slice off the top and bottom of each orange to create a flat surface. Score the skin into quarters and carefully peel away the rind, keeping a portion of the white pith attached for texture.
02 - Slice the peeled rinds into uniform strips approximately ¼ inch wide for even candying.
03 - Place the orange strips in a saucepan and cover with cold water. Bring to a rolling boil, then drain completely. Repeat this blanching process two additional times to draw out excess bitterness from the pith.
04 - In a clean saucepan, combine the granulated sugar and water. Stir continuously 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 to the touch.
06 - Using tongs or a fork, carefully lift each peel from the syrup and transfer to a wire rack set over a sheet of parchment paper. Allow to dry at room temperature for at least 2 hours, or until the surface is no longer tacky. Drying overnight yields the best results.
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 glossy.
08 - Dip each candied orange peel strip halfway into the melted chocolate, allowing any excess to drip back into the bowl. Place each coated strip onto a parchment-lined baking tray.
09 - Allow the chocolate to set completely at room temperature, or refrigerate the tray for 15 to 20 minutes to speed up the process. Once firm, transfer the finished peels to an airtight container and store in a cool, dry place for up to 2 weeks.