Science.

As the source of all good things, from glass to refined gallium, Twilight Sparkle has long been an ardent fan of science. Anything can be made better by science, from hats to bats to wooden slats. When the Ponyville arts and crafts festival rolls around, she decides to prove this to everypony by applying science to that artistic abomination of chemistry: cooking.

What happens next will transgress against the gods and venture into those flavors beyond all mortal comprehension.

Twilight, and her waistline, are doomed.

(Rated Teen for fetishy content)