Begin by slicing 3 small oranges into thin ¼-inch rounds using a sharp knife or mandoline.

In a large skillet or saucepan, combine 3 cups of granulated sugar and 3 cups of water.

Reduce the heat and carefully add the orange slices in a single layer to the syrup.

Using tongs, gently remove the simmered slices from the syrup and lay them on a wire rack.