1️⃣ Marinate the Beef:

1. In a bowl, combine soy sauce, oyster sauce, cornstarch, sesame oil, and black pepper.
2. Add the sliced beef and toss to coat well. Let it marinate for 15-20 minutes.

2️⃣ Prepare the Asparagus:

1. Rinse and cut the asparagus into 2-inch pieces. Set aside.

3️⃣ Cook the Beef:

1. Heat a large skillet or wok over medium-high heat with 1 tablespoon oil.
2. Once hot, add the marinated beef and stir-fry for 2-3 minutes until browned but not fully cooked.
3. Remove the beef and set aside.

4️⃣ Cook the Asparagus and Garlic:

1. In the same skillet, add another tablespoon of oil if needed.
2. Add the garlic cloves and sauté until fragrant and lightly browned (about 1 minute).
3. Add the asparagus and stir-fry for 3-4 minutes until tender but still crisp.

5️⃣ Combine and Add the Sauce:

1. Return the beef to the skillet.
2. Pour in the stir-fry sauce (soy sauce, oyster sauce, sugar, and broth if using).
3. Stir well to coat everything evenly and cook for another 2-3 minutes until the beef is fully cooked and the sauce thickens slightly.

6️⃣ Serve:

1. Garnish with fresh herbs like parsley or rosemary (optional).
2. Serve hot with steamed rice or noodles for a satisfying meal.