Black pepper beef - Thai Chef School

Ingredients

• 200 Grams Beef, sliced
• 1/2 Cup Onion, cubed
• 1 Cup Bell pepper, sliced
• 2 Stalks Spring (green) onion, cut into 1″ lengths
• 1 Stalk Chinese celery, cut into 1″ lengths
• 2 Cloves Garlic, cut
• 1 tbsp Crushed black pepper
• 2 tbsp Cooking oil
• 1 tbsp Oyster sauce
• 1 tsp Light soy sauce
• 1 tsp Sugar
• 1 tsp Dark soy sauce