To a cocktail shaker, add ice, tequila, simple syrup and lime juice. Shake vigorously. Pour over ice filled cocktail glasses and top with sparkling water. Garnish with a lime wedge and some fresh herbs. Enjoy!
Herby simple syrup:
In a medium size pot over high heat, bring sugar and water to a boil. Stir to ensure all the sugar has dissolved.
Turn the heat off and add the herbs. Stir a bit aggressively with a wooden spoon to allow some of the natural oils in the herbs to be released.
Let this sit for about an hour. Strain out the herbs, and pour simple syrup into a jar. Enjoy!