In all of the years that Spongebob Squarepants has been on television, not once has the secret formula to the iconic Krabby Patty been revealed. Tons of theories have popped up as to what it actually is, with a large portion of the Spongebob fanbase believing the formula to be a pinch of "King Neptune's Poseidon Powder." Whatever it is, it makes the Krabby Patty taste absolutely delicious.
With those hints in mind, YouTube channel Binging With Babish decided to recreate the staple sandwich of The Krusty Krab with his belief on what the secret ingredients could be. While he does make an educated guess as to the actual source of the ingredient, Babish surmises that a single compound is the true source of the Krabby Patty's amazing flavor: MSG.
Although this could just be his educated guess, the video reveals the mystical ingredient in a Krabby Patty.