Powdercake are no more useless after Warly update. You can make powdercake with powder, won't be rot. that's right. Powdercake's new best friend is Powder!
Powdercake become rot after 18750 days.
Don't forget about that!
https://dontstarve.fandom.com/wiki/Powdercake
Edit: i'm not good to speak.