<Tr> <Th> Main ingredients </Th> <Td> Ketchup, mayonnaise </Td> </Tr> <Tr> <Td_colspan="2"> Cookbook: Fry sauce Media: Fry sauce </Td> </Tr> <P> Fry sauce is a condiment often served with French fries or tostones (twice - fried plantain slices) in many places in the world . It is usually a combination of one part tomato ketchup and two parts mayonnaise . </P> <P> Fry sauce was originally popularized in the United States by a chef named Don Carlos Edwards, who served it in his first restaurant, Don Carlos' Barbecue in Salt Lake City, which eventually became the Utah - based restaurant chain Arctic Circle in the 1950s . The chain still serves fry sauce in its western United States restaurants . </P>

What is ketchup and mayo mixed together called