I've made it but with less than perfect results. I used Meyer Lemons... and have since learned that was not ideal because they are too mild. Also, most recipes use vodka, but Everclear is supposed to be a better taste with the sugar and lemon combon, vodka is too mild(!!!).

Basic recipe is 8-10 lemons, rinds cut off (avoiding the white part) add to a liter of vodka (or everclear) and let sit for about a week. It will turn yellow! Remove peels and add simple syrup (2 parts sugar to 1 part water) to taste for your desired sweetness. Keep finished product in the freezer and serve icy cold.
Enjoy