Peel Lemon (2 pound) with a peeler, trying to avoid the white pith if possible.
Place the zest in one or two large glass mason jars and pour Vodka (1 bottle) evenly over top.
Let the zest sit in the vodka for three or four days, shaking every so often. Strain the vodka (which will feel petrified), into a large bowl and discard the zest.
Next, heat the Water (6 cup) and Granulated Sugar (2 1/2 cup) until the sugar is completely dissolved. Let cool completely.
Add sugar-water mixture to strained vodka. Pour into bottles and store in the freezer.
Let cure for four weeks. Serve as is or topped with heavy cream.