01 - Wash the oranges thoroughly under running water. Using a sharp knife, score the peel from top to bottom into quarters. Gently remove the peel in sections, keeping a thin layer of white pith attached to preserve texture.
02 - Slice the peels into uniform strips approximately ¼ inch wide for even candying and a polished appearance.
03 - Place the peel strips in a saucepan, cover with cold water, and bring to a boil. Boil for 2 minutes, then drain completely. Repeat this blanching process two more times to draw out excess bitterness from the pith.
04 - In the same saucepan, combine the sugar and water. Bring to a simmer over medium heat, stirring constantly until the sugar has fully dissolved and the liquid is clear.
05 - Add the blanched peels to the simmering syrup. Maintain a gentle simmer for 40 minutes, stirring occasionally, until the peels become translucent and the syrup thickens slightly.
06 - Using tongs, carefully transfer the candied peels to a wire rack set over a sheet of parchment paper. Spread them out so they do not touch each other. Allow to dry for at least 1 hour until the surface is tacky but no longer wet.
07 - Place the chopped dark chocolate in a heatproof bowl set over a saucepan of gently simmering water, stirring until smooth and fully melted. Alternatively, melt in the microwave in 20-second bursts, stirring between intervals.
08 - Dip each candied orange peel strip halfway into the melted chocolate, allowing the excess to drip back into the bowl. Place each piece onto a fresh sheet of parchment paper.
09 - If desired, lightly sprinkle the wet chocolate with flaky sea salt. Allow the chocolate to set at room temperature for approximately 30 minutes until firm to the touch.