DIRECTIONS
In a large saucepan, combine the sugar, water and lime juice; add food coloring if desired. Bring to a rolling boil over high heat, stirring constantly. Add the pectin, mint and lime peel and return to a full rolling boil. Boil for 1 minute, stirring constantly.
Remove from the heat; skim off foam. Carefully ladle into hot sterilized jars, leaving 1/4-in. headspace. Adjust caps. Process for 15 minutes in a boiling-water bath. Yield: 5 half-pints.