Seafood Bisque Today, October 19, 2014, is National Seafood Bisque Day. A Bisque is a smooth, creamy, highly seasoned soup of French origin, classically based on a strained broth of crustaceans. It can be made from lobster,crab, shrimp or crayfish. Seafood bisque is traditionally served in a low two-handled cup on a saucer or in a mug. It is thought the name is derived from Biscay, as in Bay of Biscay.