Zest the lemons without using the white pulp under the yellow skin.

Add zest to grain alcohol or vodka in large jar.

Cover and infuse in dark location at room temperature for 2 weeks (longer may create a bitter tasting drink)

Filter the mixture with cheese cloth. Repeat filter if any zest remains in liquid.

Mix sugar and water in pot to boil. Boil for 5 minutes. Let syrup cool and add to lemon flavored alcohol.

Bottle the liqueur and put in dark location to age for an additional 3-4 weeks at room temperature.

Serve cold either from freezer or refrigerator.