Step 1: Prepare the Beef

Start by preparing the beef through a process called "velveting" to ensure it stays tender. In a bowl, combine 2 tablespoons of water, 1 tablespoon of cornstarch, and 1 tablespoon of soy sauce. Mix until the cornstarch is fully dissolved.

Add the sliced beef strips to the mixture and toss until they are evenly coated. Let the beef marinate in this mixture for about 15-20 minutes.

Step 2: Prepare the Mongolian Beef Sauce

In a separate bowl, whisk together ½ cup of water, 4 tablespoons of hoisin sauce, 2 tablespoons of oyster sauce, 1 tablespoon of soy sauce, 2 teaspoons of cornstarch, 1 tablespoon of sambal oelek (optional for extra spice), and 1 teaspoon of black pepper. Set this sauce mixture aside for later.

Step 3: Cooking

Heat 2 tablespoons of avocado oil in a large skillet or wok over medium-high heat. Once the oil is hot, add the marinated beef strips in batches, making sure not to overcrowd the pan. Cook each batch for about 1-2 minutes per side until they are browned and cooked through. Remove the cooked beef from the pan and set aside.

 

In the same wok, add the remaining 2 tablespoons of avocado oil. Add the smashed garlic cloves, dried chilis (if using), and julienned ginger. Stir-fry for about 1-2 minutes until fragrant.

 

Add the white parts of the green onions to the skillet and stir-fry for another minute.

 

Return the cooked beef to the skillet and pour in the Mongolian beef sauce mixture. Stir everything together and let it simmer for 2-3 minutes until the sauce thickens and coats the beef evenly.

Finally, add the green parts of the green onions to the skillet and stir them in. Cook for an additional minute, then remove the skillet from the heat.

 

Step 4: Serve

Serve the Spicy Mongolian Beef hot, garnished with additional sliced green onions if desired. You can serve it over steamed rice or noodles for a complete meal.