Wash and julienne the noodles and vegetables (cucumber, carrot, cabbage).
Boil the chewy noodles in boiling water for 3 minutes, then rinse under cold water and drain.
Mix the sauce ingredients (gochujang, vinegar, sugar, soy sauce, minced garlic, sesame oil, chili flakes, etc.) well.
Top the cooked noodles with the vegetables and a boiled egg, then add the sauce.
Mix everything well, serve on a plate, and enjoy.