Thawing and Preparing the Rice Cakes
Soak rice cakes in warm water for 10 minutes.
Heat a large pot with chili paste, soy sauce, sesame oil, and sugar.
Bring the mixture to a boil, add soaked rice cakes, and coat them in the sauce.
Simmer for 3-5 minutes, stirring occasionally.
Preparing the Anchovy Broth and Spicy Mixture
Boil dried anchovies and kelp in water for 15 minutes, then remove.
Mix gochugaru, hot pepper paste, and sugar in a small bowl.
Add spicy mix to the broth with green onion and fish cakes or eggs.
Simmer until the sauce thickens and reduces to 2 ½ cups.
Serving and Storing
Transfer rice cakes to a serving bowl, topping with mozzarella cheese, sesame seeds, and green onion.
Store leftovers in an airtight container; reheat before serving.
Serve with kimchi, pickled radish, ramen noodles, or a refreshing drink.