Saturdays Limeade

Directions

1. 1
   In a small saucepan, combine water and sugar; bring to a boil, stirring to dissolve sugar.
2. 2
   Add in zest; cover, and remove from heat; let steep 10 minutes.
3. 3
   Strain through a fine-mesh strainer and let cool.
4. 4
   Pour the cooled sugar syrup into a 1 quart container.
5. 5
   Add in the lime juice and salt; stir.
6. 6
   Chill, covered, until very cold.
7. 7
   When ready to serve, pour equal amounts of the lime concentrate and lemon-lime soda or sparkling water into a tall glass over lots of ice.