Mongolian Beef

Beef marinade

• 312 g11 oz beef (New York steak or flank steak)
• 5 ml1 tsp baking soda
• 15 ml1 tbsp cornstarch
• 30 ml2 tbsp water
• 15 ml1 tbsp oyster sauce
• 5 ml1 tsp soy sauce
• 5 ml1 tsp tamari soy sauce
• 1 ml1/4 tsp white pepper powder
• 15 ml1 tbsp oil (pre-cooking)
• 15 ml1 tbsp cornstarch (pre-cooking)

Stir Fry Ingredients

• 1 medium1 medium onion (red or white)
• 5 stalks5 stalks scallions
• 2 cloves2 cloves garlic
• 1/21/2 red bell pepper
• 1/21/2 green bell pepper
• 44 dried chili pepper

Sauce

• 15 ml1 tbsp oyster sauce
• 15 ml1 tbsp soy sauce
• 2 ml1/2 tsp tamari soy sauce
• 2 ml1/2 tsp chili sauce
• 4 g1 tsp sugar
• 15 ml1 tbsp cooking wine

Cooking

• 85 g≈ 3/8 cup oil (for frying)
• 15 ml1 tbsp sesame oil

Instructions

1. 1 Trim beef of any white gristle, then cut against the grain into thin slices. Rinse beef with cold water to remove red myoglobin, then drain. In a bowl, combine baking soda, cornstarch, water, oyster sauce, soy sauce, tamari, and white pepper powder. Squeeze excess water from beef and mix into marinade until absorbed. Meanwhile, slice onion into 1/4-inch pieces, chop scallions into 1-inch pieces (separating whites from greens), mince garlic, and cut bell peppers into strips.
2. 2 Make sauce by mixing together oyster sauce, soy sauce, tamari, chili sauce, sugar, and cooking wine in a small bowl. When beef has absorbed all marinade, mix in 1 tablespoon oil to seal in flavors, then add 1 tablespoon cornstarch for crispiness.
3. 3 Heat wok on high heat until just smoking. Add 1 oz oil and swirl to coat, then add remaining 2 oz oil and heat for 1 minute. Add beef and fry for 1.5 minutes until cooked through and crispy. Remove beef and drain oil, reserving most oil for other uses but leaving small amount in wok.
4. 4 Return wok to high heat and add garlic, dried chilies, onion, scallion whites, and bell peppers. Stir-fry for 1-1.5 minutes until fragrant. Add beef back and stir-fry 20 seconds. Add sauce and scallion greens, stir-fry 30 seconds more, then turn off heat. Drizzle with sesame oil and toss to combine. Taste and adjust seasoning before serving.