The longest sandwich ever, according to Guinness World Records, was created in 2017 by the Kooiker family in the Netherlands. Measuring in at an impressive length of 5.3 meters (17.4 feet), their sandwich was made up of a variety of ingredients, including lettuce, tomatoes, onions, cheese, mushrooms, bell peppers, and various types of meat.
The Kooiker family had been inspired by a previous record-breaking sandwich made by a Dutch-Belgian team in 2016. That sandwich, which measured 4.7 meters (15.4 feet), had been built out of a variety of ingredients, including tomatoes, cucumbers, peppers, cheese, ham, salami, and a variety of other meats.
To create their record-breaking sandwich, the Kooiker family began by spreading out a large sheet of aluminum foil on the ground, which served as their "sandwich board." They then carefully laid out their ingredients in strips that extended the full length of the foil, making sure that all ingredients were spaced evenly and that none overlapped.
Once their ingredients had been laid out, the Kooiker family then added a generous amount of mayonnaise and mustard to the sandwich. Finally, they rolled up the foil, effectively sealing the sandwich and ensuring that it retained its shape and structure.
At the time of its creation, the Kooiker family's sandwich weighed in at a whopping 21.5 kilograms (47.3 pounds). It was then cut into smaller pieces and served to a large crowd of onlookers, who enjoyed the delicious and unique creation.
The Kooiker family's record-breaking sandwich has since been featured in a variety of media outlets and has even inspired other sandwich-makers to attempt to break their record. However, no one has yet been able to top their impressive feat. The Kooiker family's sandwich remains the longest sandwich ever created, and their record is likely to remain unbroken for a long time to come.