The Cozy Dog Drive In is one of the most popular attractions along Route 66 in Illinois.

According to Bob Waldmire, the son of Ed Waldmire Jr and Virginia Waldmire, the business was born from an idea Ed had while in the Air Force. In the U.S.O. kitchen, Ed experimented with ways to cover a hot dog in a batter and fry it. The tasty hot dog on a stick was called a "crusty cur" by the servicemen and became very popular.

After being honorably discharged in 1946, Ed and his wife decided to sell the new creation. Virginia didn't like the name, "crusty curs." After much discussion they settled on the name, "Cozy Dogs." Virginia also created the original logo with two hog dogs in an embrace.

In 1949, the Cozy Dog Drive In was built on Route 66. In 1996, Cozy Dog moved to its current location, where the Waldmire family continues to serve the world-famous Cozy Dog - which the rest of the world now calls a "corn dog."

The Cozy Dog Drive In restaurant also contains the history of the establishment and the Waldmire family, as well as a small souvenir shop.