It can cost up to $200 dollars for just a small sandwich in restaurants, but it's so simple to make. And, if you choose to make this, you can't forget about the sweet, umami katsu sauce to go with it.

So they need to be good to justify their place in the offering. And they are. “The pork katsu sando is probably one of the top-five selling items at Honto,” Wolfers says. “It’s a go-to for ...