Cumin Beef

Ingredients

• 1 lb (450g) beef flank steak or sirloin, thinly sliced against the grain
• 2 tablespoons vegetable oil
• 2 tablespoons cumin seeds
• 1 teaspoon ground cumin
• 3 cloves garlic, minced
• 1 large onion, sliced
• 1 bell pepper, sliced (optional)
• 1 tablespoon soy sauce
• 1 tablespoon Shaoxing wine or dry sherry
• Salt
• pepper
• 1 teaspoon cornstarch
• 1 teaspoon sesame oil