• 1 lb flank steak
• 1 medium white onion sliced and separated in layers
• 4 scallions cut into 2-inch segments with whites and greens separated
• 4 cloves garlic minced
• 1 tablespoon vegetable oil or any neutral oil

Beef Marinade:

• 1 tablespoon regular soy sauce
• 1.5 tablespoon cornstarch or potato starch
• 2 teaspoon Shaoxing wine or rice vinegar
• 2 teaspoon sesame oil
• ½ teaspoon baking soda
• 1 tablespoon vegetable oil or any neutral oil

Sauce:

• 1 tablespoon Shaoxing wine or rice vinegar
• 1 tablespoon oyster sauce or vegetarian stir fry sauce
• ½ tablespoon dark soy sauce or sub with regular soy sauce
• 1 teaspoon cornstarch or potato starch
• ¼ teaspoon black pepper or white pepper
• 4 tablespoon cold water
• 1 teaspoon white granulated sugar or brown sugar