Are popular breakfast cereal originally manufactured by Kellogg's through the treatment of maize. A patent for the product was filed on May 31, 1895, and issued on April 14, 1896. There have been many mascots of Kellogg's Cornflakes. The most popular one is a green rooster named Cornelius (Corny) Rooster who has been the mascot since his debut. Corn flakes are usually served with milk. Fruit such as banana is also popular to serve with it.