What is the krabby patty secret ingredient?

The Krabby Patty secret ingredient is a highly guarded secret in the animated television show SpongeBob SquarePants. The recipe for the Krabby Patty is known only to Mr. Krabs, the owner of the Krusty Krab restaurant, and it is a key component of the show's humor and plotlines.

Throughout the series, various characters attempt to steal or uncover the secret ingredient of the Krabby Patty, but they are always unsuccessful. It is hinted that the secret ingredient is what makes the Krabby Patty so delicious and popular among residents of Bikini Bottom.

Fans have speculated on what the secret ingredient could be, with popular theories including crab meat, love, and even plankton. However, the true secret ingredient has never been revealed in the show, adding to the mystery and allure of the Krabby Patty.