Creating delicious Chinese Beef and Broccoli at home is simpler than you might think. Just follow these steps:

1. Prepare the Beef: Thinly slice your beef sirloin against the grain and season with salt and pepper. In a bowl, toss the beef with 2 tablespoons of cornstarch and 1 tablespoon of soy sauce. Let it marinate for about 10 minutes.

2. Blanch the Broccoli: In a pot of boiling water, add the broccoli florets and blanch for about 2 minutes. Drain and set aside. This step keeps the broccoli vibrant and crisp.

3. Heat the Oil: In a large skillet or wok, heat the vegetable oil over medium-high heat.

4. Cook the Beef: Add the marinated beef to the skillet. Stir-fry for about 3-4 minutes or until just browned. Remove from the skillet and set aside.

5. Sauté Garlic and Ginger: In the same skillet, add the minced garlic and grated ginger. Sauté for about 30 seconds until fragrant but not burned.

6. Make the Sauce: Add the beef broth, oyster sauce, and remaining soy sauce to the skillet. Bring the mixture to a gentle simmer.

7. Thicken the Sauce: Mix 1 tablespoon of cornstarch with 2 tablespoons of water to create a slurry. Slowly add this to the sauce while stirring continuously until it thickens.

8. Combine Ingredients: Return the cooked beef and the blanched broccoli to the skillet. Toss everything together until well-coated with the sauce. Cook for an additional 2-3 minutes to heat through.

9. Finish with Sesame Oil: Drizzle the sesame oil over the dish just before serving. This adds a wonderful nutty flavor.

10. Serve: Transfer your Chinese Beef and Broccoli to a serving dish.