01 -
In a bowl, whisk together soy sauce, oyster sauce, ginger, garlic, and sesame oil. Toss the beef strips in the marinade and let sit for 10-15 minutes.
02 -
Heat 1 tbsp vegetable oil in a skillet over medium heat. Add sliced onions and sauté until soft and slightly caramelized. Season with salt and pepper, then remove from the pan and set aside.
03 -
In the same pan, heat 2 tbsp vegetable oil over high heat. Add the marinated beef strips and stir-fry for 2-3 minutes until browned.
04 -
In a small bowl, whisk together soy sauce, hoisin sauce, rice vinegar, and cornstarch. Pour the sauce over the beef and let simmer until it thickens.
05 -
Add the sautéed onions back into the pan, stirring to combine. Serve hot over steamed rice or noodles.