Slice the Wagyu beef into your preferred size.

Marinate the beef in black bean sauce for 30 to 45 minutes.

Chop the Chinese broccoli, keeping the stalks and leaves separate.

Heat a wok with a splash of sesame oil.

Add the marinated beef to the wok and cook for 3 to 4 minutes until browned.

Once the beef is well-seared, incorporate the broccoli stalks and sauté for 2 to 3 minutes.

Add the Hokkien noodles, and once heated through, toss in the broccoli leaves. Stir for a few minutes to combine.