1. Slice beef thinly and put in a bowl, add all marinade ingredients and mix thoroughly to coat. Let stand for about 30 minutes.
2. In another bowl thoroughly mix all sauce ingredients and set aside
3. Fill a medium sauce pan with water, add a generous amount of salt and bring to a boil.
4. When water is boiling, add broccoli and blanch for about two minutes, then drain thoroughly.
5. Refill sauce pan with well-salted water, bring back to the boil and cook noodles according to instructions on the package.

Meanwhile:

1. Heat large cast iron frying pan or wok over high heat until a bubble of water hisses and evaporates upon contact.
2. Add a generous amount of cooking oil and swirl pan to coat. Add in beef along with the marinade and immediately spread out in a single layer.
3. Cook beef undisturbed for about a minute, then flip and cook another thirty seconds.
4. Add broccoli and all sauce ingredients and cook for about 30 seconds, tossing and turning everything to evenly coat ingredients in the sauce.
5. When noodles are done, drain them and toss with a bit of sesame oil. Pour beef, broccoli and sauce over noodles and serve immediately.

For a more yummy and slightly less healthy dish, fry the noodles before serving:

1. Pour beef and broccoli into a bowl, cover with aluminum foil and keep warm.
2. Add another generous amount of oil to the pan, turn down heat to medium and add noodles, frying them for a few minutes until they're golden and delicious.
3. Add broccoli, beef, sauce back to the wok and toss thoroughly to combine, then serve.