In a small non-stick saucepan over high heat, stirring constantly, reduce the sauce until it thickens slightly. Set aside.
Heat your pan over high heat with a thin layer of oil
Add the celery, carrot, spring onions and cabbage; stir-fry for about 3 minutes. Transfer everything to a bowl
Heat a little more oil and add 3/4 of the minced garlic. As soon as it browns, return the vegetables to the pan along with the noodles. Stir-fry for 1 minute.
Add the sauce, fry for 30 seconds, add the bean sprouts and fry for another 30 seconds
Turn off the heat, add the remaining garlic and toss