Ingredients:

1 lb beef flank steak, thinly sliced
2 large onions, sliced
2 tablespoons soy sauce
1 tablespoon oyster sauce
1 tablespoon hoisin sauce
2 cloves garlic, minced
1 teaspoon fresh ginger, minced
1 tablespoon cornstarch
2 tablespoons vegetable oil
1 teaspoon sugar
2 tablespoons water
Green onions, chopped (for garnish)
Cooked rice, for serving

Directions:

Step 1: Marinate Beef
In a bowl, combine the sliced beef with 1 tablespoon soy sauce, cornstarch, and a pinch of sugar. Mix well and let it marinate for at least 10 minutes.

Step 2: Prepare Sauce
In a small bowl, mix the remaining soy sauce, oyster sauce, hoisin sauce, water, and sugar. Set aside.

Step 3: Sauté Onions
Heat 1 tablespoon of vegetable oil in a large pan or wok over medium-high heat. Add the sliced onions and stir-fry until they are softened and slightly caramelized, about 5 minutes. Remove from the pan and set aside.

Step 4: Cook Beef
Add the remaining oil to the pan. Add the marinated beef and stir-fry until browned and cooked through, about 3-4 minutes. Add the minced garlic and ginger, and stir-fry for another 1 minute.

Step 5: Combine and Serve
Return the cooked onions to the pan and pour in the prepared sauce. Stir everything together and cook for another 2 minutes until well combined. Serve hot over cooked rice and garnish with chopped green onions.

Prep Time: 15 minutes | Cooking Time: 15 minutes | Total Time: 30 minutes | Servings: 4