Bonnie Yau produces authentic, easy-to-use Oriental cooking sauces. Produced in the UK to authentic recipes, the sauces capture traditional flavours with only natural ingredients. Sweet & Sour, Cantonese, Spicy Szechuan, Kung Po and Black Bean are Chinese pour-in cooking sauces that have no added oil and are also gluten free. The Vietnamese ZUM! is a popular anchovy based salad dressing and dip that is great for spring rolls, summer rolls, rice vermicelli salads and even marinating.