The Krabby Patty is a fictional burger from the animated series SpongeBob SquarePants, known for its popularity at the Krusty Krab restaurant and its closely guarded secret recipe. The standard Krabby Patty consists of a patty, buns, lettuce, tomato, cheese, ketchup, mustard, pickles, and onions. Despite the visible ingredients, the exact recipe for the patty itself is a closely guarded secret, the subject of much speculation and intrigue throughout the series.