1 lime, quartered
4 tsp. white sugar
4 oz. cachaça
1. In a cocktail shaker, muddle together the quartered limes and sugar. Muddle until all the juice is extracted from the limes and mixed with the sugar.
2. Add the cachaça and a few ice cubes and secure the shaker lid. Shake for 30 seconds.
3. Pour the cocktail into two ice-filled glasses and top with sparkling water.