I haven't made any yet.
But I beleve Sauerkraut is very good probiotic. The Sauerkraut which I buy from store ( unpasterurized/refridgerated) works wonders for my constipation. I always try to eat some with my food.
But store bought is damn expensive. I wish I could make some of my own, some day.
In my case, no probiotic pill works better than Sauerkraut.