Certified Gluten Free by the UK Coeliac Society Meets the FDA standard for gluten free food of less than 20 parts per million of gluten Wheat flour is replaced by a blend of rice flour, maize flour and potato starch Our promise is "all the pure-butter taste, aroma and texture you love, but without the gluten" Contains a generous helping of chocolate chips, providing a rich and luxurious complement to this classic shortbread cookie Walker's prides itself on making the world's finest shortbread and could not be more pleased to continue the tradition with this flavorful gluten free shortbread cookie. Our Gluten Free Chocolate Chip Shortbread contains a generous helping of chocolate chips, which provide a rich and luxurious complement to this classic shortbread cookie. Certified Gluten Free by the UK Coeliac Society and meets the FDA standard for gluten-free food of less than 20 parts per million of gluten. Every batch is tested to ensure compliance before being released. In the Walker's recipe, wheat flour is replaced by a blend of rice flour, maize flour, and potato starch. The Gluten Free Chocolate Chip Shortbread cookie contains the same butter and sugar content as the regular shortbreads, and as is Walker's custom, they contain no artificial flavorings or colorings. As with all Walker's shortbread, Gluten Free Chocolate Chip Shortbread contains no Genetically Modified Ingredients (GMOs) and no hydrogenated fats; is suitable for vegetarians; and is OU Kosher.