Butter burger

Butter burger
Butter burger with onions, from Hamburger America
Place of originUnited States
Region or stateWisconsin
Main ingredientsHamburger, butter

A butter burger is a hamburger topped with butter, either directly on the patty, or on the bun. Believed by many to be invented in Wisconsin, they remain popular in some northern parts of the midwestern United States, and are the principal item of Wisconsin-based fast food restaurant Culver's. Many restaurants in and around Wisconsin serve butter burgers.