"Ddeok" is a general term for Korean rice cake. There are many kinds of ddeok in Korea. They can be used as a dessert or in a savory dish. The plain tubular shape ddeok is called "ga rae ddeok", and they cut into ovals to cook "ddeok gook" which is the traditional soup for New Years. Or you can use tiny snowman shape "jo raeng ee ddoek". For "ddoek bok ee", we use narrower tube-shaped rice cake, cut into about 2-inch long pieces. In this dish, I prefer ovals because they cook very quickly, but the tube shape is fine also. I got this recipe from the Korean Kitchen web site. It's a good dish for those who would like to try something Korean, but are afraid of the heat. The preparation time includes soaking the rice cake for 1 hour.