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2 tsp granulated Sugar or 20 ml syrup

1 Lime (divided in 8 Wedges)
2 oz (60 ml) Cachaça

Muddle the sugar into the lime wedges in an old-fashioned glass. Fill the glass with ice cubes. Pour the cachaça into the glass. Stir well.

If you are all out of Cachaça you could make do with white rum.

Now if you are fresh out of rum as well, try the vodka variation of this drink: the Caipiroska.
You could also mix it with gin. Then the result would be a Caipiríssima