There are many limoncello recipes available on the internet but since I’m engaged in a pseudo-scientific endeavor here, it makes sense to publish my basic recipe. Wanna hear it? Here it go:
2 750ml bottles of pure grain alcohol
The zest of 17 lemons
3.5 cups of white sugar
5 cups of water
Zest the lemons, put them in a glass one-gallon jar with the alcohol and let it sit for 45 days. Then filter the mixture 4 times using #4 coffee filters. Mix the sugar and water in a pot and bring to a boil for 5 minutes. Let the mixture sit until completely cool and then mix with the alcohol and lemon infusion. Let that mixture sit for 45 days. Bottle the liquid and put it in the freezer.
That’s the short, basic version. There’s a lot more to it though and it would be wise of you to check the long-form recipe for all the gory details.