-In a blender, puree the following together for 1 minute:
1 cup flat leaf parsley leaves
The zest from 2 limes
½ cup fresh lime juice
1 cup cold water
½ cup sugar
-Strain through a fine-mesh sieve into a large glass-measuring cup.
-Add ice to 6 glasses and divide mixture between glasses.
-Add a shot of gin or vodka if you wish, and top with:
A lime slice
A small sprig of parsley