The cookie dough variety looks like traditional Oreos but with a cookie dough filling. And the marshmallow crispy variety is made with the "golden" vanilla cookie and has a creme center that features bits of crisped rice.
Oreo has experimented with new releases in recent years. In June, Nabisco came out with a watermelon-flavored Oreo cookie. Oreo fans had mixed reviews of that cookie. Nabisco says it choose watermelon because it was a fun, summer flavor.
In September 2012 in honor of Pride month, Kraft Foods gave its Oreo cookies an online makeover. The company posted a photo of an Oreo cookie stuffed with rainbow-colored layers of frosting with the caption, "Proudly support love." The posting drew many positive comments and "likes," but some Facebook users pledged to boycott the cookie.
Oreos were first introduced March 6, 1912. The first cookie was sold in Hoboken, New Jersey, said Susan Burris, senior associate brand manager for Northfield, Ill.-based Kraft Foods.
In 2011, more than $2 billion worth of Oreos were sold worldwide.