Jack in the Box 2026 Ultimate Guide: 75Th Anniversary Menu, Collabs, and Where to Find Stores
The core of the celebration rests on a slate of retro menu items and temporary updates to house staples. Men's Journal and Newsweek reported in February 2026 that the return of fan-favorite sandwiches sparked immediate drive-thru traffic. Diners cheered the return of the Bacon Cheddar Loaded Sourdough burger alongside spicy variations of Jack's classic Monterey Jack-topped chicken patties.
The flagship Sourdough Jack anchors the seasonal push. Toasting round sourdough buns on the flat-top griddle with garlic butter, then layering Swiss-style cheese, bacon, ketchup, and tomato-mayo sauce, the kitchen delivers an unmistakable crunch. This year's special iteration adds smoked bacon strips and extra tangy proprietary spread, yielding a heartier profile tailored to late-night eaters. Alongside the sandwiches, the kitchen revived retro-seasoned curly fries and mini churros dusted in extra cinnamon sugar, satisfying those hunting for authentic 1990s flavors.