Ingredients
Sauce
- ½ cup soy sauce (low sodium)
- ¼ cup rice vinegar (or less, if you don’t like the vinegar taste)
- 1 tablespoon brown sugar (packed)
- 2 tablespoons cornstarch
Stir Fry
- 2 tablespoons vegetable oil
- 1 pound flank steak (sliced thinly against the grain)
- ¼ teaspoon salt (or to taste)
- ½ teaspoon freshly ground black pepper
- 1 medium onion (sliced)
- 1 medium red bell pepper (thinly sliced)
- 1 medium green bell pepper (thinly sliced)
- 3 cloves garlic (minced)
Instructions
- Prepare the sauce: In a small bowl, whisk together soy sauce, rice vinegar, brown sugar, and cornstarch until smooth. Set this sauce mixture aside to use later.
- Season the steak: Place the thinly sliced flank steak in a bowl and season evenly with salt and freshly ground black pepper.
- Cook the steak: Heat 1 tablespoon of vegetable oil in a skillet over medium-high heat. Add the steak in a single layer and cook without stirring for 1 minute to allow searing. Then stir and continue cooking for an additional 1 minute until just browned. Remove the steak from the skillet and set aside on a plate.
- Sauté vegetables: Add the remaining 1 tablespoon of vegetable oil to the same skillet. Add sliced onions and both red and green bell peppers. Cook, stirring occasionally, for 4 to 5 minutes until the vegetables are softened and slightly tender.
- Add garlic and steak back: Return the cooked steak to the skillet along with minced garlic. Cook for about 30 seconds until the garlic becomes fragrant.
- Thicken the sauce: Pour the prepared sauce over the steak and vegetables. Stir well to combine and cook for another 30 seconds to 1 minute until the sauce thickens and coats the ingredients well.
- Serve: Optionally garnish with sesame seeds and serve immediately over cooked rice for a complete meal.
Notes
- Slicing the flank steak thinly against the grain helps keep the meat tender.
- You can adjust the amount of rice vinegar to your taste if you prefer less acidity.
- For additional flavor, garnish with toasted sesame seeds before serving.
- Serve this pepper steak with steamed rice or noodles for a satisfying meal.
- Use low sodium soy sauce to control the saltiness of the dish.
- Prep Time: 15 minutes
- Cook Time: 15 minutes
- Category: Main Dish
- Method: Stovetop
- Cuisine: Asian-American
