So I peeled grapefruits, oranges, and a lemon. Then I boiled them.
I put them in a syrup, cooked them for an hour, then drained them.
They dried overnight. After that, they were dusted in sugar. (This recipe is basically sugar, sugar, more sugar, citrus peels, and sugar.)
They were great! I gave them out around work as gifts, using the labels on the post linked above. They leave a nice clean taste after, which is refreshing!
Don’t worry, the fruit was put to good use as well!