This is a common dish among Chinese restaurant that really test the culinary skill of the chef. Deep Fry a well season meal enclave with just a thin layer of corn flour, top with just the right balance of sweet & sour sauce. It has to done right in every step. Precision, experience, skill are all aligned to get a perfect bite - crispy, non oily, yet succulent & yummiliciou at the same time. Chef Leung you did it well !!!