Prewett's biscuits Oats & Honey Cookies 135g. Free from gluten & wheat Suitable for vegetarians Gluten & wheat free all butter oat & honey cookies made with gluten free oat flour & oat flakes, 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