Quoting: sapphire
thanks for this. I love that soup and would love to have a go... Im not sure where I would leave beetroot to ferment for 10 days though.. maybe an airing cupboard? Can you still make it the same way without the fermenting or is this absolutely vital?
I don't know if the fermenting is necessary. I've had Barszcz in Poland and even out of a jar bought in a local shop (yipee for all the Polish food now being sold) and I find it a bit bland and sweet.
I better warn you - the yeast and sugar ferment violently and it will overflow easily. Staining everything so put it in capturing container.
I just wanted to post my fathers method because its quite different.