Wash the mint sprigs; chop into fine pieces. Combine with the lemon rinds in a flat bowl; pound as finely as possible. Soak in the brandy for a week. Strain; distill and add the peppermint extract. Boil the sugar in enough water to make a syrup; allow to cool. Add to the brandy and stand for a half-hour. Strain and bottle for future use.
Serve in a Favorite Glass