Fry sauce

Fry sauce is a condiment often served with French fries or tostones in many places in the world. It is usually a combination of one part tomato ketchup and two parts mayonnaise. Although sauce composed of a mixture of equal parts ketchup and mayonnaise appears in a New Orleans cookbook published in 1900, fry sauce was popularized in Utah. It may have first appeared there in 1955 at Stan's Drive-In, which was then a franchise of Arctic Circle. Another possible origin for fry sauce was the "pink sauce" served in 1941 at Don Carlos Barbecue in Salt Lake City. In his essay on Utah fry sauce, Michael P. Christensen noted that fry sauce "functions as a cultural identifier for Utahns." The Arctic Circle chain still serves fry sauce in its western United States restaurants. In April 2018, Heinz announced the release of "Mayochup", a mixture of the two sauces, because 500,000+ users voted "yes" in a Twitter poll asking Americans if they wanted to see it in stores. A number of Twitter users responded that such a mixture already existed as "fry sauce" and "fancy sauce". The sauce arrived at U.S. retailers' shelves in September 2018.

Source: Wikipedia