Confirm Java is the best roux one can reasonably get outside of Japan

My additions to the box recipe: I cut the veg a bit smaller, I brown the veg a bit (including potatoes, but you have to have a dry starchy potato type like russet for this to work otherwise precooking it will lead to it just becoming mush during the boil and thickening the sauce), add honey and some kind of neutral hot sauce because Japanese “spicy” is like not even a little spicy. I actually now use one of those ultra extreme spicy 10 billion scoville capsicum extract sauces, literally a few drops in a pot makes it decently spicy and otherwise adds no flavor.

Unless you live alone you might as well make the whole box in one recipe imo. It keeps for several days, reheats easily, and it’s one of those “tastes better day 2 and 3” kind of meals. The only thing is that freezing it doesn’t work so well (sort of). Freezing busts up the cell walls in the potatoes so even if you use a dry starchy potato like above it will turn to mush once you thaw and reheat. It’s not bad, but it does change the texture with a thicker sauce and much less potato “chunks” (some bits usually survive).

The only better thing I’ve found is to make a roux from scratch but honestly it’s not that much better (and probably worse until you dial it in) but a lot more work. The roux is like $4 a box at my local market and making it is like an entire Saturday plus way more money in ingredients especially if you don’t have a well stocked spice rack