Summer’s Unlikeliest Cocktail Ingredient?

Summer’s Unlikeliest Cocktail Ingredient?

It may seem odd for Guinness—a deep, dark, robust stout—to play a key role in the latest crop of refreshing summer drinks. But bartenders say its creamy texture and bitter-chocolate flavor add just the right counterpoint to a wide range of cocktails, and it’s showing up in surprising ways. For Taylor Yale, a bartender at Hartley’s in Brooklyn, New York, the inspiration for the Guinn & Tonic was an espresso tonic spotted in a coffee shop. “I said…