Virtually all sources agree on the Judeo-Spanish roots of boyoz. It is a contribution to İzmir's urban culture by Sephardic Jews who were evicted from Spain after 1492 and who settled in large numbers in a number of prominent Ottoman cities of the period, among which İzmir stood out as one of the primary destinations.
The majority of sources agree that boyoz has its origins in Judeo-Spanish language.  İzmir's cultural landscape is shaped by Sephardic Jews who were forced to leave Spain after 1492 and settled in large numbers in several prominent Ottoman cities, with İzmir being one of the most significant destinations for them.