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Kaffe Tonic

Saint Frank CoffeeServed at Saint Frank Coffee of San Francisco, Kaffe Tonic is simply a shot of espresso poured over a glass of Fever-Tree tonic and ice. It tastes like a refined take on the Fernet-Branca and soda you'd drink on an afternoon in Buenos Aires. Saint Frank Coffee, 2340 Polk St, San Francisco, CA 94109 [Photo via]
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