<Tr> <Th> Place of origin </Th> <Td> United States </Td> </Tr> <Tr> <Th> Region or state </Th> <Td> Buffalo, New York </Td> </Tr> <Tr> <Th> Main ingredients </Th> <Td> Kimmelweck roll, sliced roast beef, horseradish, au jus </Td> </Tr> <P> A beef on weck is a sandwich found primarily in Western New York State, particularly in the city of Buffalo . It is made with roast beef on a kimmelweck roll . The meat on the sandwich is traditionally served rare, thin cut, with the top bun getting a dip au jus and spread with horseradish . </P>

Where did beef on weck originally come from