Sweet and Spicy Mongolian Beef
This Sweet and Spicy Mongolian Beef combines tender slices of beef with a sticky, glossy sauce that balances sweetness from brown sugar and a kick of heat from red pepper flakes. It’s faster to make than waiting for delivery, and I promise it’ll become a regular in your weeknight dinner rotation.
Prep Time 15 minutes mins
Cook Time 15 minutes mins
Total Time 30 minutes mins
Servings 4 servings
Calories 300 kcal
- 1 lb flank steak thinly sliced
- 1/4 cup low-sodium soy sauce
- 1/4 cup cornstarch
- 3 tbsp brown sugar
- 2 tbsp hoisin sauce
- 1 tbsp rice vinegar
- 1 tsp grated fresh ginger
- 3 garlic cloves minced
- 1/2 tsp red pepper flakes adjust for spice preference
- 1/4 cup water
- 2 tbsp vegetable oil
- 4 green onions chopped (white and green parts separated)
In a medium bowl, toss the sliced flank steak with cornstarch until every piece is evenly coated. Set aside while you make the sauce.
Whisk together soy sauce, brown sugar, hoisin sauce, rice vinegar, ginger, garlic, red pepper flakes, and water in a small bowl. Taste and adjust the sweetness or spice if needed.
Heat vegetable oil in a large skillet over medium-high heat. Add the beef in a single layer (work in batches to avoid steaming!) and cook for 2-3 minutes per side until golden brown. Remove the beef and set aside.
Reduce the heat to medium. Add the white parts of the green onions and sauté for 1 minute until fragrant. Pour in the sauce and let it simmer for 2-3 minutes until it thickens slightly.
Add the cooked beef back to the skillet. Toss everything together for 1-2 minutes until the sauce coats the beef evenly. Remove from heat and sprinkle with green onion tops.