Daging Sapi Daun Bawang

Bahan-bahan (2 porsi)

• 10 oz (280g) beef tenderloin (thinly sliced)
• 2 1/2 tablespoons cooking oil
• 1/2 onion (sliced)
• 3 cloves garlic (thinly sliced)
• 3 stalks scallion (cut into 2-inch (5cm) strips)
• 1 teaspoon cornstarch
• 1 teaspoon soy sauce
• 1 teaspoon Chinese Shaoxing wine (or dry sherry)
• 2 teaspoons oyster sauce
• 2 tablespoons soy sauce
• 1/4 teaspoon dark soy sauce
• 3 dashes white pepper powder
• 1/4 teaspoon sesame oil
• 1 tablespoon sugar
• 1 pinch salt