What edible item, sold by the bottle in supermarkets, got its name because caviar was once one of its usual ingredients?

How to win: Send your answer, with your full name and address, either by e-mail to [email protected], or on a postcard to Stan Newman’s Trivia Challenge No. 58, P.O. Box 69, Massapequa Park, NY 11762. Only one submission per person, please. Answers must be received within seven days of publication. One winner will be chosen at random from all correct entries, who will receive a copy of Stan’s new book “15,003 Answers: The Ultimate Trivia Encyclopedia,” courtesy of Random House. Answer and winner will be announced in a future issue.

Answer trivia contest No. 51

One of Superman’s popular nicknames is “Man of Steel.” The name “Stalin” means “man of steel” in Russian. Winner: Carl McGee of New Gloucester, Maine.