In a Collins glassAdd 3/4 oz. fresh lime juice to the glass, followed by ice and tequila. Top with the sparkling water.
In a Topo Chico bottlePour out enough Topo so that there’s 3 oz. left in the bottle. Add the lime juice, tequila, and one lime wedge. Put your thumb over the bottle opening and agitate it to mix the ingredients.
