I've even used a floater of mezcal when I haven't had Islay Scotch on hand (you can also omit it altogether for a less smoky drink). I love it so much, I use the penicillin as the base for my ...

Float the Islay single malt Scotch over the top by pouring it gently over the back of a spoon. Garnish and Enjoy: The Penicillin Cocktail is more than just a drink—it’s an experience that ...