Sweet and Sour Chicken

I still have some sweet and sour sauce left from the other day so I made this. The chicken is salted, floured and then deep fried. The sauce is warmed up and then poured on top. Great with rice. The sauce is ketchup, Worcestershire Sauce, cane sugar, vinegar, dark soy sauce, water and starch. Doesn't read like it, does it? But it is classically Cantonese, from the recipe of one of the all time great Hong Kong chef Leung King.