Boil the chicken breast and shred it into bite-sized pieces.
Boil the chewy noodles in boiling water for 3 minutes, then rinse them in cold water.
Julienne the cucumber, carrot, and cabbage.
In a bowl, mix gochujang, vinegar, sugar, soy sauce, and minced garlic to make the sauce.
Add the sauce to the noodles and mix well.
Top with chicken breast and vegetables to complete the dish.