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 peels into uniform strips approximately ¼ inch wide for even candying and a polished presentation.
03 - Place the strips in a saucepan, cover with cold water, and bring to a rolling boil for 2 minutes. 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 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 each strip to a wire rack set over a sheet of parchment paper. Allow the peels to dry at room temperature for at least 1 hour until tacky but no longer dripping.
07 - Set a heatproof bowl over a saucepan of gently simmering water (double boiler method) and melt the dark chocolate, stirring until smooth. Alternatively, melt in the microwave in 20-second intervals, stirring between bursts.
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 fresh parchment paper.
09 - Sprinkle lightly with flaky sea salt if desired. Let the chocolate set at room temperature for approximately 30 minutes until firm to the touch.