Finely chop the cabbage, grate the carrots and mix everything together well with your hands. Knead very well (or mash in the same way).
Stir the whipped cream with a good dash of vinegar, 2-3 tsp grated horseradish, salt and sugar. The dressing should taste of vinegar, salt and horseradish – the herb draws a lot of flavor and spiciness.
It is best to let it stand for 5-6 hours.