It doesn't get simpler or more refreshing than a classic caipirinha, which is the national cocktail of Brazil. The sweet-tart drink calls for just three ingredients: lime, sugar, and cachaça, a sugarcane liquor that's like a smokier version of rum.
Cut lime into 6 wedges. Squeeze the wedges into an old-fashioned glass, then add wedges. Add cachaça and sugar; use a spoon to muddle. Fill glass with ice, then stir well to chill.