Oleo Saccharum (Citrus Oil Sugar Syrup)

0 Peel the lemons with a vegetable peeler or a sharp paring knife, reserving the peels. Save the fruits for juicing (and make oleo lemonade!)
1 Toss the peels with the sugar in a medium sized mixing bowl. 
2 Cover and let the mix sit for a couple of hours (at least one hour). Stir the mixture occasionally to help the sugar dissolve.
3 Once nearly all of the sugar has dissolved and there's a pool of liquid in the bottom of the bowl, remove the peels and reserve the liquid.