Combine water and salt in a small saucepan; bring to a boil. Add lemons; cook 30 minutes or until liquid is reduced to 1/2 cup and lemon rind is tender. Remove from heat; cool to room temperature.
Mash the pulp in a sauce or a stew, or use it to baste chicken or lamb. These can be made several days ahead and stored in the refrigerator for up to a week. To distribute the flavor, chop before adding to a dish.