In a medium bowl, combine soy sauce, oyster sauce, fish sauce, sugar and black pepper. Mix until well combined. Place beef in another medium bowl. Add half the marinade and toss to coat.

In a bowl, I toss the beef with soy sauce, oyster sauce, cornstarch, and a pinch of black pepper. I let it sit while I prep ...

Bring to the boil, reduce the heat to very low, cover with the lid and simmer gently for 3–3½ hours, by which time the beef shin should be meltingly tender and the sauce thick and viscous.

Place the beef on a sheet pan in the oven ... Transfer broccoli from the pan to top the brisket. Drizzle oyster sauce on top of the Chinese broccoli and sprinkle with flax and sesame seeds.