Shop our 2024 calendars. Now available for purchase!
Image for National Eat an Oreo Day

National Eat an Oreo Day

Today we eat the best-selling cookie in the United States, the Oreo. It can be eaten plain but is often paired with milk. It can be used to make cakes, milkshakes, other desserts, and can even be deep fried. Made up of two chocolate disks and white cream filling, the original name for the cookie was the "Oreo Biscuit." It looked similar to today's Oreo, although over time there have been small changes to both the chocolate disks and the cream. The cream used today was created by Sam Procello, who was Nabisco's "principal scientist," known as "Mr. Oreo." The current design of the cookie has been in place since 1952. Oreos were created by Nabisco and first sold on March 6, 1912, by grocer S.C. Thuesen in Hoboken, New Jersey. Nabisco applied for a trademark on March 14, 1912, and received it on August 12, 1913.

Oreos may have gotten their name for a few different reasons: It may come from the French word "or," which means gold—early packaging for the cookies was gold; it may come from the Greek word "oreo," which means beautiful and nice, or mountain—resembling the shape of early testings of the cookies; or it may be a combination of the letters "re" from cream, and the two "o's" in chocolate. After starting out as the "Oreo Biscuit," the cookies' official name changed to the "Oreo Sandwich" in 1921, to the "Oreo Creme Sandwich" in 1948, and to the "Oreo Chocolate Sandwich" in 1974. Variations of the cookie have been introduced over the years: Double Stuf Oreos were introduced in 1975, fudge covered Oreos in 1987, Halloween Oreos in 1991, and Christmas Oreos in 1995. Today, nine out of ten American households buy Oreos. Each year 7.5 billion cookies are purchased. As of 2015, more than 450 billion Oreos have been sold.

How to Observe National Eat an Oreo Day

Celebrate the day by eating an Oreo or many Oreos! Dunk them in milk, or twist off a side and eat the cream first. Make deep-fried Oreos, or try your hand at other recipes. You could also spend the day trying as many varieties of the cookie as you can.

Exclusive Content

Enjoying Checkiday? It takes a lot of support from fans like you to run a free website. For exclusive content and other perks, please consider supporting us on Patreon. Thank you!


This event does not currently have a sponsor. If you'd like to increase visibility for this event while gaining exposure for yourself or your brand, you can learn more here!

Something Wrong or Missing?

We would love to hear from you! Please contact us using this form.

Observation Notifications

Would you like to be notified before the next observation? Add this event directly to your calendar with this link. You may also sign up here to be told when other notifications are available!

Also on this date…