Fries
Curly Fries
Crisscut Fries
Onion Rings
Tots
One of the ingredients is a small piece of the soul of the cook. The fries naturally take a frowny, miserable shape due to the anguish the soul fragment is put through, and the cooks manipulate them into smiley faces. People with pure souls cannot eat the smiley fries, or if they do they can go insane. Eventually the cooks soul will be so broken that they and all memories of them will simply fade from existence.
Those who have eaten large amounts of the corrupted fries will feel compelled to make more, and thus the cycle continues.
This post brought to you by the power of boobs. Dear lord them boobs. Amen
Not one person has mentioned Jack in the Box curly fries. Shame on you all.