Angostura Bitters is the essential ingredient in many cocktails, including the Wisconsin staple, the Old Fashioned. And it is the concoction that made Nelsen’s Hall and Washington Island famous. But the company and the beverage have always been a bit of a mystery. Robert Simonson, cocktail writer for the New York Times, journeyed to the distillery in Trinidad to get answers about Angostura, and even found some. His story about the journey appears in the winter edition of Door County Living. He joins Myles Dannhausen Jr. to talk bitters, the rebirth of cocktails, and the evolution of the bartending craft.