Mix minced garlic, soy sauce, granulated sugar, Korean red chili pepper powder and Korean red chili paste in a bowl to make a paste.
To prep the rice paper, dip in lukewarm water for 2 seconds. Place on a non-stick surface and roll from the bottom to the top as tightly as you can. The rice paper will continue to soften.
Repeat for each piece of rice paper. Use a wet knife and slice each roll into 3-4 pieces, around 2 inches long each.
Heat up stock or water in a deep pan and add the spicy paste. Bring to a medium boil.
Add in onions and let boil for 30 seconds.
Add in fish cakes and rice paper rolls and cook for about 2-3 minutes. To thicken, add the cornstarch slurry. Stir frequently.
Add the ramen noodles and cook according to package instructions.
Taste the spicy sauce and adjust the seasoning to your liking (e.g., sugar for more sweetness or gochugaru for more spiciness). Add another ½ cup of broth or water, if necessary. The sauce should have a similar thickness to a creamy soup.
Finally, add in scallions and let simmer for another 20 seconds.
Serve in a deep bowl, top with more scallions and sesame seeds. You can also hard-boil an egg-- cut it in half, and add it as a topping!