Originally Posted by
robyng
What in your opinion are the ingredients in a traditional "tonkatsu sauce"? The recipes I've found all look like BBQ sauces to me. Robyn
Not a matter of opinion. Finding it is about as hard as finding ketchup in the USA. Try it. The closest approximation is Worcestershire Sauce. And that is still an approximation. Any Asian foods supermarket in the US will have it as well, that may be a good option to get a sense of it before arrival.
I suspect that after trying it you will note the differences for yourself. Since all food experiences are so much better enjoyed empirically, I recommend this rather than trying to describe it here.