Sizzling Chinese Pepper Steak with Wok This Way

Ingredients

• 1 lb (450g) beef sirloin steak, cut into ¼-inch thick strips (against the grain)
• 1 tbsp (15ml) soy sauce
• 1 tbsp (15ml) cornstarch (cornflour in the UK)
• 1 tbsp (15ml) vegetable oil
• 1 tsp (5ml) sesame oil
• ¼ tsp (approx 1.5ml) ground black pepper
• 1 large yellow onion, sliced
• 1 green bell pepper, sliced
• 1 red bell pepper, sliced
• 2 cloves garlic, minced
• 1-inch piece of ginger, peeled and minced (about 1 tbsp)
• 2 tbsp (30ml) soy sauce
• 2 tbsp (30ml) oyster sauce (vegetarian option available)
• 1 tbsp (15ml) brown sugar
• 1 tbsp (15ml) rice vinegar
• 1 tbsp (15ml) cornstarch (cornflour)
• ½ cup (120ml) beef broth (or chicken broth)
• ½ tsp (2.5ml) ground white pepper
• 1/4 tsp (approx 1.5ml) red pepper flakes (optional, for a kick)
• 2 tbsp (30ml) vegetable oil