Jess likes sugar cookies. She likes them iced, sprinkled with colored sugars, and shaped like rocket ships and dinosaurs. Not so thin they break before you can eat them but not so thick they squish instead of snap when you bite them. Real butter. Genuine vanilla. Jess likes the perfect sugar cookie.
Sam likes Jess. He likes the way she flies her rocket ship cookies at his mouth and makes the dinosaur cookies battle each other before she laughingly bites off their heads and tails. So he mail-orders expensive vanilla and learns to bake because Sam thinks Jess is perfect.