1: Prepare the rice cakes by soaking them in water if they are hard.
2: In a pan, mix gochugaru, sugar, sesame oil, soy sauce, gochujang, and garlic with a little water.
3: Cook the mixture over medium heat until it starts to bubble.
4: Add the soaked rice cakes to the pan and stir until coated with the sauce.
5: Cook for a few minutes until the rice cakes are heated through.
6: Add mozzarella cheese to the top and cover the pan until the cheese melts.
7: Serve hot and enjoy your cheesy tteokbokki!
