Senate bean soup

United States Senate Bean Soup or simply Senate bean soup is a soup made with navy beans, ham hocks, and onion. It is served in the dining room of the United States Senate every day, in a tradition that dates back to the early 20th century. The original version included celery, garlic, and parsley. One of the two versions used today includes mashed potatoes. According to the Senate website, "Bean soup is on the menu in the Senate's restaurant every day. There are several stories about the origin of that mandate, but none has been corroborated." On September 14, 1943, rationing due to World War II left the Senate kitchen without enough navy beans to serve the soup. The Washington Times-Herald reported on its absence the following day. In a speech on the Senate floor in 1988, Bob Dole recounted the response to the crisis: "Somehow, by the next day, more beans were found and bowls of bean soup have been ladled up without interruption ever since."

Source: Wikipedia