Candied Grapefruit or Orange Rinds

• 2 grapefruits, or 4 navel oranges
• 2 cups [400 g] granulated sugar

Cut the ends off the fruit just far enough in so you can see the flesh on each side. Set the fruit on one end and cut the rind and pith away with a knife, following the contours of the fruit so that very little flesh is left attached to the rind and very little rind is left attached to the fruit. (You can cut the fruit into wedges to use in a fruit salad