A compound butter made by heating ground lobster shells together with butter. Sometimes lobster meat and coral are also included. The mixture is then strained into ice water, which hardens the butter. Lobster butter has a multitude of uses including flavoring sauces or soups or as a spread.
From The Food Lover's Companion, Fourth edition by Sharon Tyler Herbst and Ron Herbst. Copyright © 2007, 2001, 1995, 1990 by Barron's Educational Series, Inc.