Oreo

Oreo is a sandwich Cookie consisting of two chocolate wafers  with a sweet creme  filling in between, and (as of 1974) are marketed as "Chocolate Sandwich Cookies" on the package they are held in. The version currently sold in the United States is made by the Nabisco  division of Mondelez  International. Oreo has become the best selling cookie in the United States since its introduction in 1912