Making Sticky Beef Noodles is straightforward if you follow these steps:

1. Cook Noodles: Begin by boiling a large pot of water. Add the rice noodles and cook according to package instructions. Drain and set aside.

2. Prepare Beef: In a bowl, mix the sliced flank steak with soy sauce, oyster sauce, and cornstarch. Let it marinate for about 10 minutes.

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

4. Cook Beef: Once the oil is hot, add the marinated beef to the skillet in a single layer. Sear for about 2-3 minutes on each side until cooked through. Remove and set aside.

5. Sauté Aromatics: In the same skillet, add garlic and ginger, sautéing for about 30 seconds until fragrant.

6. Combine Ingredients: Add the cooked noodles to the skillet along with brown sugar, beef broth, and sesame oil. Toss everything together over medium heat.

7. Return Beef: Add the cooked beef back into the skillet, mixing thoroughly until well combined and heated through.

8. Season: Taste and season with salt and pepper as needed, adjusting flavors to your preference.

9. Garnish: Serve hot, garnished with chopped green onions and sesame seeds if desired.

10. Enjoy: Dive in and savor every bite of your delicious Sticky Beef Noodles!