Make a basic peach alcohol by mixing 2 large chopped peaches with 1 cup of vodka and 3 inches of lemon zest, steeping the mixture for two days, straining the solids out, and adding a syrup made by boiling together 3/4 cup of sugar and 3/4 cup of water. Store the finished peach liqueur tightly covered for up to two months in the refrigerator.
Start your peach liqueur by pitting and coarsely chopping 2 ripe peaches. Put the peaches, vodka and lemon zest in a glass jar, cover it tightly, and shake it well. Set the jar in a cool, dark place for two days. Test the flavor, and let the mixture steep for an extra day if the peach flavor is not strong enough.
Next, strain the mixture through cheesecloth or a coffee filter placed inside a strainer. Push the peaches firmly against the cloth or filter to extract all the flavor. Make the simple syrup, let it cool, and stir it into the peach-infused vodka.
For a spicier peach liqueur, add a cinnamon stick and a few whole cloves before steeping the vodka-peach mixture. Try substituting bourbon or brandy for the vodka and orange zest for the lemon zest to create flavor variations.