Bisque is a smooth, creamy, highly seasoned soup of French origin, classically based on a strained broth (coulis) of crustaceans. It can be made from lobster, crab, shrimp or crayfish. Also, creamy soups made from roasted and puréed fruits or fungi are sometimes called bisques. Bisque is a method of extracting every bit of flavor from imperfect crustaceans not good enough to send to market. In an authentic bisque, the shells are ground to a fine paste and added to thicken the soup.