The Navy Strength Old Fashioned is the cornerstone of the cocktail menu at Queen Mary Tavern in Chicago. "It's simple, elegant, strong, and a bit counterintuitive, but it's delicious," says general manager Dan Smith. Despite the unusual combo of gin and rum, "it's nothing but a classic Old Fashioned [in format], though we do add one more minor touch: a tiny bit of salt, in the form of saline solution, not enough to make the cocktail salty—just enough to make all the ingredients taste more. So it's a nice balance of the familiar with the strange."