A riff on a classic Whiskey Buck cocktail, the Kentucky Buck (the creation of bartender Erick Castro) combines strawberry with bourbon, citrus, bitters and ginger beer for a cocktail that’s simple to make and even easier to drink. It’s also a cocktail we think has true staying power, so much so, that we named it one of 10 modern classics in our May/June 2014 issue. Mix one up and find out for yourself why it made the cut.