Oreo O’s cereal is a crunchy, chocolate-flavored wheat hoop cereal with a vanilla-flavored rice disc, reminiscent of an Oreo cookie. The 350g box is a source of vitamins and iron and is fortified with these essential nutrients. The cereal is often described as having a rich creme coating that creates a “cookie milk” flavor and is suitable for vegetarians, though it contains wheat and soy.