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 as much of the white pith attached as possible for a tender candied texture.
02 - Cut the peels into uniform strips approximately ¼ inch wide for even candying and an elegant finished appearance.
03 - Place the 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 - Combine the sugar and water in the saucepan. Bring to a simmer over medium heat, stirring continuously until the sugar is fully dissolved and the liquid is clear.
05 - Add the blanched peels to the simmering syrup. Cook gently for 40 minutes, stirring occasionally to prevent sticking, until the peels become translucent and the syrup thickens.
06 - Using tongs, carefully transfer the candied strips to a wire rack set over parchment paper. Allow them to dry for at least 1 hour until the surface is tacky but no longer wet.
07 - Melt the dark chocolate in a heatproof bowl set over gently simmering water, stirring until smooth and glossy. Alternatively, melt in the microwave in 20-second bursts, stirring between intervals.
08 - Dip each candied peel strip halfway into the melted chocolate, allowing the excess to drip off. Place each piece onto parchment paper, leaving space between strips to prevent sticking.
09 - Sprinkle lightly with flaky sea salt if desired. Let the chocolate set at room temperature for about 30 minutes until firm to the touch.