Creating Chinese Beef and Broccoli is straightforward if you follow these simple steps:

1. Prepare the Beef: Slice the beef against the grain into thin strips. This helps ensure tenderness.
2. Marinate: In a bowl, combine the beef strips, cornstarch, soy sauce, and a pinch of salt. Let this marinate for about 10 minutes.
3. Blanch the Broccoli: In a pot of boiling water, add broccoli florets. Blanch them for around 2 minutes until bright green but still crunchy. Drain and set aside.
4. Cook the Beef: Heat the vegetable oil in a large skillet or wok over medium-high heat. Add the marinated beef, spreading it out in a single layer. Stir-fry for about 3-4 minutes or until browned.
5. Add Aromatics: Stir in the garlic and ginger, cooking for another minute until fragrant.
6. Add Sauces and Broth: Pour in the beef broth, oyster sauce, and sugar. Stir to combine and bring to a simmer.
7. Incorporate Broccoli: Add the blanched broccoli to the skillet. Toss everything together, allowing the flavors to meld for about 3 minutes.
8. Thicken the Sauce: If desired, mix a bit more cornstarch with water and stir it into the sauce to thicken. Cook for an additional minute.
9. Serve: Once everything is heated through and well combined, take off the heat.

By following these steps, you will create a delicious Chinese Beef and Broccoli dish that will impress everyone at your table!