Boil the chicken breast and shred it into bite-sized pieces.
Cook the chewy noodles in boiling water, then rinse with cold water.
Julienne cucumber, carrot, and cabbage.
In a bowl, mix gochujang (Korean red chili paste), chili powder, vinegar, sugar, soy sauce, and minced garlic to make the sauce.
Toss the cooked noodles, vegetables, and chicken breast with the sauce.
Serve in a bowl and garnish with a boiled egg and sesame seeds.