Ddeok Gook (Korean New Year Rice Cake Soup)

This is a traditional Lunar New Year dish in Korea. I have seen many different recipes - the only really standard ingredient seems to be the rice cakes -- but I really liked the savoriness of this one. The rice cakes in this soup are not the crispy American kind, but a firm Asian kind used in soups and other dishes. They are like Korean mochi, if that means anything to you. You could use beef broth instead of the anchovy broth if you prefer, although I don't think the anchovy broth r