Fill a large pot with lightly salted water and bring to a rolling boil over high heat. Stir in the Korean glass noodles once the water is boiling, and wait until it returns to a boil. Cook the noodles for about 4-5 minutes without lid and stir occasionally, until the noodles have cooked through. Rinse with cold water and drain well.
Heat oil in a pan over medium-high heat. Stir in the pork and cook for about 1 minute or until it has changed color.
Stir in the garlic, chili pepper, long hot pepper and stir fry for about 2 minutes until fragrant.
Stir in the cabbage and continue cooking and stirring for about 3 minutes or until the cabbage has started to soften.
Add salt, sugar, soy sauce and oyster sauce and then add the noodles. Stir fry for 3 minutes or until the noodles are warmed through.