"Liverwurst isn’t as easy to find as it used to be. It is a German or Austrian sausage of the spreadable sort, made with pig liver, lard, and sometimes onion or bacon. Mustard is a necessity, and raw onions an asset. Finally, you need a good stout bread. Whole wheat was used at Ray’s Deli, where liverwurst was found for $6." - Robert Sietsema