There's only one thing better than iced coffee: iced coffee with bubbles. When it's hot out, who doesn't want a caffeinated, fizzy drink?
What kind of bubbles are we talking about? Tonic water, of course. While tonic and coffee might seem odd together, it's a combination that has risen to popularity in the specialty coffee world, providing a refreshing, caffeinated kick to drinkers in search for something different than just a regular cup of coffee or espresso.