Caipirinha is the national cocktail of Brazil and a must-try drink in Rio de Janeiro. It is made with cachaça (a Brazilian spirit), lime, sugar, and ice. The combination of the tartness from the lime, the sweetness from the sugar, and the kick from the cachaça creates a refreshing and flavorful drink. Caipirinha is often enjoyed at beachside kiosks or bars in Rio, especially during the hot summer months.