if y0u can get fresh horseradish ,
its not that difficult , MarketBasket has it !
its a tuber a inch in diameter or so
about a foot long ? here at MB its out w the fresh veg
its also wrapped in cling-film , I guess so it doesn't dry out
anyway , I make sure the root is ' clean '
cut 6 " pieces , Vac in a bag , and take them out
Fz and grate like Fz ginger . takes a bit of time for the bite to show up
but it will . I plane off the dried out end , just takes a shave or two
and toss.
and its right there in the freezer .
