Instructions:
Step 1: Prepare the sauce by combining soy sauce, rice wine vinegar, brown sugar, and cornstarch in a medium bowl. Whisk until well combined and set aside.
Step 2: Heat 1 tablespoon of oil in a large skillet over high heat. Once hot, add the sliced flank steak to the skillet. Season with salt and pepper, then cook for about 8 minutes, or until both sides are seared. Transfer the cooked steak to a plate.
Step 3: In the same skillet, add the remaining tablespoon of oil followed by the sliced green and red bell peppers. Cook for about 4 minutes, or until tender. Add the minced garlic and ginger, stirring constantly until fragrant.
Step 4: Return the cooked steak to the skillet. Pour the prepared sauce over the beef and peppers. Cook for an additional 12 minutes, stirring occasionally, until the sauce thickens and coats the ingredients evenly.
Step 5: Once the dish is done, remove it from the heat and serve immediately with cooked white rice.
Enjoy this flavorful and satisfying Pepper Steak with your favorite side dishes for a delicious homemade meal that beats takeout any day!