Prewett's Triple Chocolate Cookies 175g. Free from gluten & wheat Suitable for vegetarians Delicious gluten free cookies packed with rich milk, dark & white chocolate chunks, made for the whole family to enjoy. Since 1872, when William Prewett began milling flour in Horsham, Sussex, the Prewett's name has been synonymous with fantastic quality foods. Our biscuits are simply delicious & amazingly, they're Gluten Free!