Hong Kong style refers to a mix of Cantonese and Western cooking that was typically served in "Cha Chaan Teng" tea restaurants in Hong Kong. Hong Kong style sweet and sour chicken is a westernised version of the original Chinese recipe. The sauce is made with ketchup, Worcester sauce and pineapple juice and water or chicken stock. The fried chicken can be served in the sauce with stir-fried veggies and pineapple chunks or sweet and sour chicken balls are served with a dipping sauce on the side.