Corn flake cookie is a delightful and crispy cookie made from corn flakes and when baked nicely it is equally popular with both youngsters and adults. A little light corn syrup is often added to the recipe to give the cookie extra sweetness. Cornflake cookies generally use cornflakes along with butter and sugar. Some peanut butter may also be added along with the light corn syrup for extra flavor. They are good with a glass of milk or even with the evening coffee.