Culver’s Curderburger

Depending on where you reside, you may not be familiar with the Culver's restaurant franchise in the Midwest of the United States. They're perhaps best known for their butter burger, which is, of course, a burger with butter on top. They do, however, have a fondness for cheese, and cheese curds can be seen on the menu. In 2021, the firm joked on Twitter about a Curderburger, which was simply a huge cheese curd on a bun.

The joke became so popular that a petition was started to make it a reality, which 642 people signed. That was enough for Culver's to agree to make the burger a reality for just one day. And it worked perfectly. The company reported that 20% of locations broke single day sales records as a result of the Curderburger becoming a reality. In Wisconsin they were selling Curderburgers at three times the rate of normal burgers.