Beef and Broccoli

Ingredients

• 1 lb (450g) flank steak, thinly sliced against the grain
• 1 tablespoon soy sauce
• 1 tablespoon Chinese rice wine or dry sherry
• 1 teaspoon cornstarch
• 1/4 cup oyster sauce
• 2 tablespoons soy sauce
• 1 tablespoon brown sugar
• 2 cloves garlic, minced
• 1 teaspoon ginger, minced
• 1/2 cup beef broth or water
• 2 tablespoons vegetable oil
• 1 tablespoon cornstarch mixed with 2 tablespoons water (slurry)