BEST EVER PEPPER STEAK
INGREDIENTS :
1/4 cups low-sodium soy sauce
2 tablespoons of rice wine vinegar
4 teaspoons packed brown sugar
1 tablespoon cornstarch
2 tablespoons vegetable oil, divided
Kosher salt
Freshly ground black pepper
1 pound flank steak, thinly sliced against the grain
1 red bell pepper, thinly sliced
1 green bell pepper, thinly sliced
3 cloves garlic, minced
1 tablespoon freshly minced ginger
Cooked white rice, for serving