Welcome to Delicious! Curderburger is Back News | September 29, 2025 | 0 | by Morgan McCarthy There’s excitement among Culver’s fans as the “Curderburger” has returned to the menu. The fast-food chain describes it as a gooey, golden Wisconsin Cheese Curd stacked on a signature Deluxe ButterBurger. The Curderburger actually began as an April Fool’s joke in 2021, but it’s become a fan favorite. The burger is available starting today until supplies last.