Yo-yo's Secret Recipe is The Adventures Of Gary The Snail episode from season two. In this episode, Gary and his snailfriends must cook a surprise cake with an ick made of fungus and frosting with Yo-yo and his secret recipe. Meanwhile, Kevin the Sea Cucumber returns with the jellyspotters and challenged SpongeBob and his friends to a cook off.
Kevin the Sea Cucumber (debut)
Sheldon J. Plankton (Mentioned)
The Krusty Krab (In a flashback episode "Fungus Among Us")
Time card shown:
Two Hours Later
Main article: Yo-yo's Secret Recipe Transcript