Savory Mongolian Beef

Savory Mongolian Beef

Savory Mongolian Beef is a popular dish inspired by Chinese-American restaurant cuisine. It features thin slices of tender beef coated in a rich, glossy sauce that balances sweet, savory, and slightly spicy flavors. The beef is quickly stir-fried at high heat, creating a delicious texture while preserving its juiciness. This recipe is written in detailed form to help you achieve restaurant-quality results at home.

Ingredients

For the Beef

700 grams flank steak, sirloin steak, or ribeye, thinly sliced against the grain

1/2 cup cornstarch

1 teaspoon baking soda

1 tablespoon soy sauce

1 tablespoon vegetable oil

For the Sauce

1/2 cup low-sodium soy sauce

1/2 cup water

1/2 cup brown sugar

2 tablespoons hoisin sauce

1 tablespoon oyster sauce

1 tablespoon rice vinegar

1 teaspoon sesame oil

1 teaspoon freshly grated ginger

6 cloves garlic, finely minced

1/2 teaspoon crushed red pepper flakes, optional

2 teaspoons cornstarch mixed with 2 tablespoons cold water

For Stir Frying

4 tablespoons vegetable oil

6 green onions, cut into 5-centimeter pieces

1 medium onion, sliced thinly

1 red bell pepper, sliced thinly

1 tablespoon minced ginger

3 cloves garlic, minced

For Garnish

2 tablespoons toasted sesame seeds

2 green onions, thinly sliced

Freshly cooked steamed rice

Preparation

Begin by preparing the beef. Place the thinly sliced beef into a mixing bowl. Add the baking soda and soy sauce. Mix thoroughly until every piece is lightly coated. Allow the beef to rest for about 15 minutes. This step helps tenderize the meat and gives it a softer texture similar to what is often found in restaurant dishes.

After the beef has rested, add the cornstarch and toss until all slices are evenly coated. The cornstarch creates a delicate outer layer that helps the beef develop a light crust when cooked and also helps the sauce cling beautifully to the meat.

While the beef marinates, prepare the sauce. In a medium bowl combine the soy sauce, water, brown sugar, hoisin sauce, oyster sauce, rice vinegar, sesame oil, grated ginger, minced garlic, and crushed red pepper flakes if using. Stir continuously until the sugar dissolves completely. Set aside.

Prepare all vegetables before you start cooking because stir-frying happens quickly. Slice the onion and bell pepper, cut the green onions into sections, and keep everything within reach.

Cooking the Beef

Heat a large wok or heavy skillet over high heat. Once very hot, add two tablespoons of vegetable oil. Carefully place half of the coated beef into the pan in a single layer. Avoid overcrowding because this can cause the beef to steam instead of sear.

Cook the beef for approximately one minute per side or until lightly browned. Transfer to a plate and repeat with the remaining beef using additional oil if necessary. The beef does not need to be fully cooked at this stage because it will finish cooking later in the sauce.

Cooking the Vegetables

In the same wok add the remaining oil. Add the sliced onion and cook for about two minutes while stirring frequently. Add the bell pepper and continue cooking for another two minutes. The vegetables should become slightly tender but still maintain some crispness.

Add the minced garlic and ginger. Stir continuously for about thirty seconds until fragrant. Be careful not to burn the garlic because it can become bitter.

Creating the Sauce

Pour the prepared sauce mixture into the wok with the vegetables. Stir well and bring the mixture to a gentle simmer. Once simmering, slowly add the cornstarch slurry while stirring constantly. Continue stirring until the sauce thickens and becomes glossy. This usually takes one to two minutes.

Combining Everything

Return the cooked beef and any accumulated juices back into the wok. Add the green onion pieces and toss thoroughly to coat every piece of beef with the sauce. Continue cooking for two to three minutes until the beef is fully cooked and the sauce has reached a rich, silky consistency.

The finished sauce should cling to the beef rather than pooling at the bottom of the pan. If it becomes too thick, add a small splash of water. If it seems too thin, simmer for another minute while stirring.

Serving

Transfer the Mongolian Beef to a large serving platter. Sprinkle generously with toasted sesame seeds and sliced green onions. Serve immediately over hot steamed rice.

For a complete meal, pair it with stir-fried broccoli, snow peas, bok choy, or sautéed mushrooms. The vegetables complement the rich flavors of the beef while adding freshness and texture.

Chef’s Tips

Choose beef with good marbling for maximum tenderness and flavor.

Always slice the meat against the grain. This shortens the muscle fibers and produces a more tender bite.

Prepare all ingredients before heating the wok because stir-frying moves very quickly.

Use high heat throughout the cooking process to achieve the characteristic restaurant-style flavor.

If you prefer a sweeter version, add an extra tablespoon of brown sugar.

For a spicier dish, increase the red pepper flakes or add sliced fresh chilies.

Do not overcook the beef. Thin slices cook rapidly and remain most tender when cooked just until done.

Leftovers can be stored in an airtight container in the refrigerator for up to three days. Reheat gently in a skillet with a splash of water to restore the sauce consistency.

This hearty Savory Mongolian Beef recipe produces tender slices of beef coated in a rich caramelized garlic-ginger sauce with layers of sweet, savory, and mildly spicy flavor. The glossy sauce, crisp vegetables, and aromatic green onions create a satisfying dish that rivals many restaurant versions while being made entirely at home.