In-N-Out Once Served A 100x100 Double-Double, And It's As Intense As It Sounds - Tasting Table

"In-N-Out Burger, for example, offers the Double-Double, which you can get with up to four patties. But back in 2004, one ambitious blogger named Will Young ordered a Double-Double with 100 patties and dubbed it the "In-N-Out 100x100." It was just as preposterous as you can probably imagine."

"According to Young, his friend had become obsessed with the idea of a 100x100 since In-N-Out allowed customers to order their burgers as Double-Doubles, Triple-Triples, and so on. The name just means two patties and two cheese slices, or three patties and three cheese slices. So the plan was to order 100 patties and 100 cheese slices - and it worked."

"In-N-Out employees were very accommodating in 2004 - they even managed to rig a box, fitting several together to create a cardboard canoe to hold it all. These days, In-N-Out shuts you down at a Quad Quad burger."

In October 2004, blogger Will Young and seven friends ordered an In-N-Out 100x100 burger in Las Vegas on Halloween, featuring 100 beef patties and 100 cheese slices. The ambitious order cost $97.66 total, with the 98 extra patties adding $88.20 to the base $2.65 burger price. In-N-Out employees accommodated the request by constructing a cardboard box container to hold the massive burger. The group successfully consumed the entire burger. Today, In-N-Out no longer permits such extreme customizations, limiting orders to Quad Quad burgers with four patties and four cheese slices, marking the end of the 100x100 era.

Read at Tasting Table