Soak rice cake in cold water for 10 minutes. If frozen, soak 10 min longer.
Dunk fish cake into boiling hot water and let it sit for 20 seconds. Transfer to a strainer. Once cooled, cut into desired shapes.
Cut scallion and julienne. Soak in cold water for 10 min to make them curly and mild tasting.
In a saucepan, bring 3 cups of water to boil. Drop kelp and scallion stems and boil on high for 10min. Discard kelp and scallion.
Make gochujang mixture and mix well. Pour this mixture into the saucepan. Stir until well dissolved. Set heat to medium high.
Add rice cake and cook for about 5 minutes or until the rice is tender, stirring occassionally.
Reduce heat to low and add the fish cakes. Simmer for 3-4 min. stirring frequently. Add more salt or sugar if desired.
Turn off heat and add sesame oil, sesame seeds and julienned scallions.
Serve Hot!!