The Krabby Patty Secret Formula is the recipe for the Krabby Patty of SpongeBob SquarePants, Plankton almost always attempts to steal the formula so he can sell Krabby Patties at the Chum Bucket so it will be successful, and sometimes he also seeks to use it to take over the world.
There are many theories trying to explain what the formula truly is over the years
One theory coined by the Film Theorists claims that the formula is actually just a marketing ploy by Mr. Krabs
But another says that Mr. Krab killed all his species to make the Krabby Patty.
- Another possibility is that he's been using his molted crab shells.
Mat Pat released another Formula theory on his Food Theory channel, since his first theory never sat right with him.