Take a good size juicy lime and cut off the two ends. Cut the lime in half length-wise, and cut each half into four wedges. Using your knife, carefully remove the white pith from the inside edge of each wedge.
Drop the wedges into a rocks glass. Add 1 ounce of simple syrup or 2 teaspoons of sugar, preferably superfine sugar
Crush the limes and sugar for 5-10 seconds with your muddler, being sure to extract most of the lime juice from the limes (don’t over do it, or you’ll extract some bitter elements from the peel).
Fill the glass with crushed or cracked ice to the top. Add 2 ounces of Leblon Cachaça.
To finish, shake in a shaker for 10-20 seconds until the sugar is dissolved, or give the drink a thorough stir with a teaspoon or stirrer for about 10 seconds.
Garnish with a lime wedge or wheel, and serve.