Cook your noodles according to package instructions, then drain and set aside.
In a small bowl, whisk together the ingredients for the sauce - soy sauce, oyster sauce, honey, rice wine vinegar, and browning (if using). In another bowl, whisk together the cold water and cornstarch to make a slurry. Slowly add the slurry into the soy sauce mixture and set aside.
In a large bowl add the sliced beef, soy sauce, cornstarch, rice wine vinegar, and ginger powder. Stir together until the beef is coated all over.
Add the sesame oil to a hot wok and sear the beef until cooked to your preference. Transfer to a plate and set aside.
In the same wok, add the onions, garlic, and ginger. Saute for 2 to 3 minutes, until fragrant. Then, add broccoli florets and cooked noodles to the wok. Stir-fry on high heat until the broccoli is tender.
Gradually add the sauce to your dish while constantly mixing it to ensure that it is evenly incorporated.
Add the beef back in and cook all of the ingredients together until warmed through.
Serve hot.