A simple yet delicious stir fry of crunchy green beans and chicken tossed together and flavoured with sesame oil and sichuan pepper., a Chinese fermented rice wine, is the secret sauce that makes this recipe sing. It’s pretty easy to find at Asian markets, but don’t confuse it with rice vinegar! If you see bottles labeled “rice cooking wine” without the Shaoxing designation, they will work too. While you can substitute dry sherry, nothing else achieves quite the same flavor.