In summary: Unopened fondant = 1.5 years of patient glory. Opened fondant = 3 months of careful neglect. A fondant cake = 3 days of perfect deception. Leftover fondant in a drawer = eternal proof of your poor planning.
So next time you’re thinking, “Can I save this?”, remember: fondant is the camel of the baking world. It’ll travel through a desert of time, but it really prefers a cool, dark, airless cave. Now go forth, wrap that sugar blanket, and maybe—just maybe—buy a smaller bag next time. Your shelf will thank you.