Store the flavored sugar in an airtight container. If you refrigerate it will last for several months. The sky is the limit on how you would like to use the completed mixtures :-)
Ingredients:
Lemon/Lime
3 lemons or limes
2 cups sugar
Orange:
1 1/4 cup grated orange peel
1 cup sugar
Directions:
Grate all of the zest from the fruit. Add 1 cup of the sugar and all the zest in a food processor and pulse until the zest has been finely ground. Add the rest of the sugar (except for Orange) and toss well.
Spread the flavored sugar in a large pan or on a baking sheet and let sit until dry, about an hour.