Mongolian Beef with Homemade Teriyaki Sauce
This mongolian beef with homemade teriyaki sauce is a quick and flavorful dinner made with tender beef and a rich, glossy sauce that clings to every bite. Ready in 30 minutes, it’s better than takeout and easy to customize.
Ingredients
- 1 lb flank steak or London broil , thinly sliced
- 1/4 cup cornstarch
- 2 tbsp vegetable oil
- 3 cloves garlic , minced
- 1 tbsp fresh ginger , grated
- 1/2 cup soy sauce
- 1/3 cup brown sugar
- 1/2 cup water or beef broth
- 1 tsp sesame oil
- 4 green onions , sliced
Instructions
- Slice beef thinly against the grain.
- Toss with cornstarch and rest 10–15 minutes.
- Heat oil and cook beef in batches until browned with slightly crispy edges. Remove.
- Cook garlic and ginger briefly.
- Add sauce ingredients and simmer until slightly thickened.
- Return beef and toss to coat.
- Add green onions and serve.
Notes
- Slice beef thin and against the grain
- Partially freeze for easier slicing
- Rest with cornstarch to tenderize
- Cook in batches for best texture
- Simmer sauce until glossy and thick enough to coat the beef