[zmix]

I did not find it outside of Hungary, yet, but there they have a mustard mixed with horseradish[1].

Since this type of mustard is unknown where I live, I tried to recreate it, but never achieved the same balance as in the commercial product, which is sad, because, in my opinion, it's a match made in heaven! It may be, that they use a milder mustard, than average, to balance out the hotness of the horseradish.

[1]: https://www.univer.hu/en/products/mustard/horseradish-mustar...

[pasquinelli]

i know several varieties of beaver brand mustard have horseradish. example:

https://www.beavertonfoods.com/product/beaver-deli-mustard-1...

[apricot]

Maille has a horseradish mustard ("moutarde au raifort" in French), and it's one of my favorites.

[claudiawerner]

Mustard mixed with horseradish is also common in Romania.