National Oreo Cookie Day is celebrated annually on March 6th. This day honors the iconic Oreo cookie, which was first introduced in 1912 by the Nabisco company. Known for its distinctive black-and-white design, the Oreo consists of two chocolate wafers with a sweet cream filling in between. On this day, fans of the Oreo are encouraged to enjoy the cookie in various ways, whether by eating it straight from the package, dunking it in milk, or using it as an ingredient in desserts. Many people also share their favorite Oreo recipes and creative ways to enjoy this beloved treat.