CONSIDER the wagyu katsu sando the Porsche of sandwiches. The luxurious combination of elite beef, ethereal milk bread slices, and a brush of tangy-sweet tare sauce is at the top end of the spectrum in the sandwich category.

About a decade ago, the Japanese speciality began showing up in the US. (Anyone who worked in downtown New York in 2018 might remember the arrival of the US$185 Don Wagyu sandwich on Wall Street.)

Later this year, the most famous version of that sando will arrive in Miami from Tokyo.