Persian limes are the most common variety of limes available in stores. Their sour taste is a great addition to food, whether it be for a hearty stew or a light dessert. Persian limes are sometimes dried which enhances their flavor. Once dried, the limes retain the sour flavor, but they also develop earthy undertones. Dried Persian limes can be found in specialty food stores, but it is much cheaper to make them on your own.
Fill a pot with enough water to completely cover the limes.
Add salt to the water. For each cup of water you use, add 1 tbsp. of salt. For example, if you use 8 cups of water, add 8 tbsp. of salt.
Set the pot on the stove and bring the water to a boil. Add the limes and let them boil for five minutes.
Pour the limes into a strainer and place it under running lukewarm water.
Put the limes on a drying rack in a sunny spot outdoors. Let them dry in the sun until they feel hard and hollow. The entire process generally takes about a week.