My BBQ Shrimp recipe in a love letter to America

It’s the Brennan recipe for BBQ shrimp except for the amount of butter, the shallot and the type of beer I use. These variations came from a dear dear friend of mine. We worked together at the Ritz on Canal Street. She was a housekeeper, about 60 years old then, and a TRUE born and bred New Orlean. Her name was Miss Catherine. Did I not promise authenticity?!