Add the beef to a bowl and season with salt, white pepper, baking soda, shaoxing wine, light soy sauce, cornstarch, and neutral oil. Mix until combined and marinate for 15 minutes.
Premix the sauce in a bowl by combining light soy sauce, dark soy sauce, oyster sauce, sugar, white pepper, sesame oil, MSG, chicken stock, and cornstarch.
Bring a pot of water to a boil. Add the broccoli and blanch in boiling water for 1 minute until bright green and crisp. Remove the broccoli with a spider strainer, drain and set aside.
In the same pot of boiling water, cook the lo mein noodles for 1 minute less than package directions, drain and set aside.
In 4 tbsp of neutral oil over high heat, fry your beef for 2-3 minutes and remove. Remove oil from the pan, leaving 2 tbsp of oil and adjust the heat to medium high. Add the garlic and ginger and stir fry for 15 seconds until fragrant. Turn the heat to high, add the blanched broccoli and stir fry for another 30 seconds.
Add back the cooked beef, noodles, and pour in the sauce. Mix and continue cooking over high heat until the sauce has thickened, about 1-2 minutes. Enjoy!
Video
Notes
flank steak - cut into 1/4″ strips; Make sure you are slicing the flank steak against the grain – this is an easy way to ensure your meat will be tender.
msg – I like to use this in moderation as an optional flavor enhancer
chicken stock – if you don’t have chicken stock, you can substitute with water
shaoxing wine – if you can’t use Shaoxing wine, you can substitute with sherry, mirin, or chicken stock/broth.
broccoli – avoid the pre-cut broccoli and get crowns from the store that you can cut into similar sized pieces so they cook evenly.
lo mein noodles - I use fresh lo mein noodles (not cooked) by the brand “Twin Marquis”, which can be found in the refrigerated section at my local Asian grocery. I recommend using fresh noodles so they can cook in the pan or wok with the rest of the ingredients – this is how you’ll get the best tasting lo mein. If you can’t find fresh lo mein noodles, you can use another thick long noodle of your choice (even spaghetti has worked for me in a pinch)!
Store any leftover Beef and Broccoli Noodles in an airtight container in the refrigerator for up to 3-4 days. The noodles will soften and stick together - this is normal! I like to reheat until warmed through in the microwave with a wet paper towel on top (this mimics light steaming).