Real-life Krabby Patty is on sale now but people are pointing out it's missing one key detail

It's a staple of Bikini Bottom, and the envy of Plankton the copepod, and now, the Krabby Patty has been brought to the real world.

Wendy's has released its own version of the iconic Spongebob Squarepants burger, but many fans are saying that there's one thing missing from it.

The burgers feature heavily in the show, with fry cook Spongebob voiced by Tom Kenny cheerfully churning them out before returning home to his pineapple under the sea.

Not only that, but the jealous Plankton is always on the lookout for ways to steal the Krabby Patty secret formula and put the Krusty Krab out of business.

The 'secret formula' of the burger is a running joke, with many fans expressing their excitement at the real-life version on social media.

But after its arrival, many people were left saying the same thing about a notable omission in the burger.

The Krabby Patty Kollab (Wendy's)

That is, that the bun didn't have the sesame seeds on it, despite it clearly having them in the cartoon.

Not only that, but some fans were left disappointed by the packaging, which wasn't as colourful as they'd hoped.

They took to social media to share their thoughts on the burger after its release.

One person wrote: "It’s kind of crazy to me that this is the long awaited first time Krabby Patties have ever been 'brought into the real world' and they couldn’t even have a sesame seed bun or some fun packaging or anything."

A second commented: "It's surprising they didn't add a sesame seed bun or creative packaging to make the Krabby Patties more appealing!

The Krabby Patty Burger (X / @stormatom33)

"A little extra effort could have made a big difference in bringing that iconic experience to life."

A third echoed the sentiment, saying: "Yeah not even a fun box or anything."

That said, the recipe of the burger is of course a closely guarded secret in the show, so who's to say this isn't actually the real deal?

It also comes with a Pineapple Under the Sea Frosty, in a reference to Spongebob's home.

Lindsay Radkoski, the US Chief Marketing Officer for The Wendy's Company, said: "In a world of people cutting corners, Wendy's is known for quality in everything we do – from our fresh, famous food to collaborations with brands that our fans love.

"So, it makes sense that two of the most iconic squares in pop culture are teaming up to bring a taste of this unique, limited-time experience to life for fans of all ages!"