BEST-EVER PEPPER STEAK

• 1/4 c.low-sodium soy sauce
• 2 tbsp.rice wine vinegar
• 4 tsp.packed brown sugar
• 1 tbsp.cornstarch
• 2 tbsp.vegetable oil, divided
• Kosher salt
• Freshly ground black pepper
• 1 lb.flank steak, thinly sliced against the grain
• 1red bell pepper, thinly sliced
• 1green bell pepper, thinly sliced
• 3cloves garlic, minced
• 1 tbsp.freshly minced ginger
• Cooked white rice, for serving

Directions

1. Step 1Make sauce: In a medium bowl, whisk the soy sauce with the vinegar, sugar, and cornstarch. Set aside.
2. Step 2In a large skillet over high heat, heat 1 tablespoon oil. Add flank steak, season with salt, and cook until cooked through and seared on all sides, about 8 minutes. Remove steak to a plate.
3. Step 3Add 1 tablespoon remaining oil and red and green bell peppers to the skillet. Cook until softened, about 4 minutes. Add the garlic and ginger and cook stirring until fragrant. Return the beef to the skillet and pour over prepared sauce. Cook, stirring, until the sauce is glossy about 2 minutes more.
4. Step 4Serve with rice.