A splash of soda water makes these tart slushies pleasingly bubbly. With a little rum, they'd also make great cocktails. More Nonalcoholic Drinks
In a blender, working in batches, blend the ice with the water, lime juice, basil leaves and sugar until slushy. Pour the limeade into chilled glasses. Top with 2 tablespoons of the soda water, garnish with the basil sprigs and serve.