Chopped liver sandwich is a traditional Jewish dish originating from New York City, and it's typically served in delis. It's made with a combination of rye bread, chicken livers, schmaltz (rendered chicken or goose fat), sliced onions, hard-boiled eggs, salt, and pepper.

The combination of ingredients is sautéed, then sandwiched between two sliced of rye bread and enjoyed as it is. In New Yorker delis, there is also an array of condiments to add to the sandwich, such as mustard or pickles.