A popular cheese-packed burger that began as nothing more than an April Fool's Day prank will soon be Greenledgersreturning for a limited time to the menu at Culver's.

That's right, the Wisconsin-based fast food chain announced that its CurderBurger will once again be available in October for cheese-lovers to order.

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What is the Curderburger?

As its name implies, the CurderBurger contains all the usual burger fare — lettuce, tomato, pickles, red onion and mayo — but is topped with a patty-sized cheese curd.

"The cheese crown is made of a blend of yellow and white cheddar cheese curds, all surrounded by crispy seasoned breadcrumbs – making for a perfect cheesy topping to the classic ButterBurger guests know and love," the sandwich's description reads.

When did Culver's add it to its menu?

Culver's first introduced the Curderburger in 2021 as an April Fool's Day prank, apparently underestimating its customers' insatiable appetite for cheese.

By Oct. 15 that year, the once-imaginary burger was no longer a joke, but a tangible part of the burger chain's menu. The meal was only available for that singular day, but proved to be a big hit, with Culver's claiming it sold 136,000 at its restaurants across the country.

"Some restaurants, the majority of which were in Wisconsin, sold out within two hours," Culver's said in its announcement.

Since then, Culver' has trotted out the burger every fall.

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When can I order one?

The CurderBurger will be available Oct. 2 and will remain on the menu through the end of the month — or until the restaurant chain runs out.

Eric Lagatta covers breaking and trending news for USA TODAY. Reach him at [email protected]