Culver\'sMILWAUKEE (CBS 58) -- Culver's is celebrating their first-ever "Curdtoberfest." Culver's will debut a new jalapeño cheese curd Oct. 15 for the tenth anniversary of National Cheese Curd Day. The jalapeño cheese curds will be available through Oct. 31. The bigger news -- Culver's is kicking off Curdtoberfest with the return of the Curderburger. Culver's released the Curderburger as an April Fool's joke in 2021, but the menu item is now returning for its fifth year.