Ihave have been making this one for years with great results:
Limoncello
15 Lemons; zest only
1 bottle 100 proof Stoli vodka
Mix and let sit in a dark place in a GLASS container for 40 days
Remove from dark place
In a sauce pan mix 5 cups of water and 3.5 cups of sugar; bring to boil, cool and add to original batch. Add one more bottle on 100 proof Stoli and let sit on a dark place for another 40 days.
Strain though a coffee filter, bottle and freeze.
ults: