Step 1

Trim 1/4 inch off the top and bottom of each lemon. Split each lemon lengthwise into quarters, keeping quarters connected at base. Transfer to a large bowl. Toss with salt and sugar. Cover with plastic and refrigerate overnight.

Step 2

The next day, the lemons will have released a lot of liquid. Transfer entire contents of bowl to a sterilized canning jar, pressing lemons down firmly until they are completely submerged in liquid. Seal jars and store in refrigerator for at least 2 weeks and up to 6 months.