Caipirinha - cooking recipe

Ingredients

3 key limes
4 ounces cachaca (1/2 cup)
1/4 cup superfine sugar (to taste)
2 cups crushed ice

Preparation

Trim the ends off the key limes and halve lengthwise. Cut each half into 4 slices.
In a cocktail shaker, using a wooden spoon or a pestle, muddle the key limes with the 1/4 cup of sugar until juicy and the sugar dissolves.
Add the cachaca and the crushed ice and shake for 10 seconds; taste and add more sugar if desired.
Pour (not strain) into an old-fashioned glass or tumbler ice and serve.