# Method:
01 - Line a baking sheet with parchment paper or a silicone mat.
02 - Using a sharp knife or mandoline, slice the oranges crosswise into 1/8-inch rounds. Discard ends and any seeds.
03 - In a large, wide saucepan, combine sugar and water. Bring to a simmer over medium heat, stirring until sugar dissolves completely.
04 - Carefully add the orange slices in a single layer, working in batches if necessary. Simmer gently over low heat, turning occasionally, until the rinds look translucent, approximately 40 to 45 minutes.
05 - Use tongs to transfer the slices to the prepared baking sheet. Arrange in a single layer without overlapping.
06 - Let cool and air-dry for at least 4 hours or overnight until no longer sticky to the touch.
07 - Once completely dry, store in an airtight container at room temperature for up to 1 week.