Cook noodles according to package directions. Drain and refresh under cool running water then toss with a dash of oil to stop them sticking.
Combine all sauce ingredients in a bowl, stirring well until sugar is dissolved.
Heat 1 tablespoon of vegetable oil in wok or large pan over medium high heat. Add the garlic, chilli, onion and celery, stir-fry 2 minutes. Add the prepared noodles and stir-fry for a further 2 minute
Add the cabbage and spring onions and toss with the noodles until just starting to wilt but still crunchy. Pour in the sauce and toss well to coat. Add the chives and coriander and remove from heat. Toss to combine.
Divide between bowls and and garnish with spring onion curls and extra chilli if desired.