'Kaffe Tonic' is the name of the coffee and tonic water drink that's prepared by Saint Frank in San Francisco. This refreshing coffee beverages takes inspiration from a similar style of drink from Helsingborg, Sweden, from a microroaster by the name of Koppi.
The drink is prepared by pouring a shot of espresso over a glass filled with Fever-Tree tonic and ice cubes. As for the flavors of the drink, the Kaffe Tonic amplifies the sweet and bitter flavors that are already present in both the coffee and tonic water. Depending on the flavor of the coffee beans used, the entire tone of the drink can be changed.
As well as being a nice alternative to an early morning espresso, this makes a fantastic mid-day substitute for a carbonated drink.