According to their u003ca href=u0022https://www.culvers.com/stories/food-cravings/origin-of-the-name-butterburger-u0022 target=u0022_blanku0022 rel=u0022noreferrer noopeneru0022u003ewebsiteu003c/au003e, there isn’t even any butter used when cooking the patty! Instead, the buns are brushed with pure Wisconsin butter from a family-owned creamery near the location of the original restaurant.