Did you hear that? Did you hear that? We're going to be serving an all-new all-Brooklyn sandwich! This simple yet completely delicious sammie will be featuring Brooklyn Cured Pastrami, Roberta's sweet and salty butter, and Tin Mustard's whole grain mustard. The bread you ask? Well, that will be served on Balthazar's rye loaf and will be un-toasted so that you can taste all of that rye goodness. Come try one today! Or tomorrow. Or the next day.