Rub the horseradish on the open window. Then put a little butter in the pot and add the grated horseradish and sweat a little, pour the milk on and simmer (the longer it cooks, the milder it becomes), add as much me as it is nice and creamy. Add the vinegar, the soup powder, salt and sugar to taste. If you want to tie it, sprinkle in 1-2 tablespoons of breadcrumbs and bring to the boil again.