01 - Wash the oranges thoroughly under running water. Using a sharp knife, score each peel from top to bottom into quarters. Gently remove the peel in sections, keeping a thin layer of white pith intact for texture.
02 - Slice the peeled orange sections into uniform strips approximately ¼ inch wide for even candying.
03 - Place the strips in a saucepan, cover with cold water, and bring to a rolling 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 granulated sugar and water. Bring to a gentle simmer over medium heat, stirring continuously until the sugar has fully dissolved.
05 - Add the blanched orange peel strips to the simmering syrup. Cook gently for 40 minutes, stirring occasionally, until the peels become translucent and the syrup thickens noticeably.
06 - Using tongs, carefully transfer the candied peels to a wire rack set over a sheet of parchment paper. Allow them to drain and dry for at least 1 hour until the surface is tacky but no longer dripping.
07 - Place the dark chocolate in a heatproof bowl set over a saucepan of gently simmering water, stirring until completely smooth. Alternatively, melt in the microwave in 20-second bursts, stirring between each interval.
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 - Sprinkle the freshly dipped chocolate ends with flaky sea salt if desired. Let the chocolate set at room temperature for approximately 30 minutes until firm to the touch.