Grape Jelly is a purple minion that first appeared in Curing Grape Jelly. Think got the idea that turning him yellow might turn him good, but instead turned him brown but still evil. After Think and Kevin turned him back to purple, Think decided to name him because he feels bad that they don't have names, so he decided to name grape jelly. After that, they put some good in him even though he's still evil, and he's getting better.
Curing Grape Jelly (1st appearance)
Kevin's Robot Dino
Celebrity Cook off (mentioned)