BadRoad said: Worst case: She unteaches Sakuya how to cook.
Nah, this will hurt Meiling and/or Patchy. I don't know how, but somehow, they will be hurt.
(Possibly involving Meiling being used as an ingredient and it being fed to Patchy...)
Sakuya will timestop and prevent something she thinks is terrible from happening to the chocolate, and it will just trigger Flan doing something worse, like summoning Cthulhu instead of merely making a deep one.