Make the Buldak sauce by combining gochujang, gochugaru, soy sauce, mirin, oyster sauce, brown sugar, black pepper, and minced garlic.
Add capsaicin extract to the sauce and adjust the consistency by adding more mirin if needed.
Boil the fresh ramen noodles until al dente.
Transfer the noodles to the pan with the Buldak sauce and mix well, adding some ramen water to help the noodles absorb the sauce.
Serve the Buldak ramen in a bowl, topped with sesame seeds, green onions, and a boiled egg if desired.
