I had never heard about bialy until a week ago when I stumbled upon a recipe while searching for new sourdough inspirations. It seemed interesting, so I decided to do some research.
I found a lot of other recipes, but not so much history about this Polish bread, except that it probably originated from the area around Bialystok in the northeast of Poland.
It reminds a lot of a small pizza with the depression in the middle, filled with sauteed onions. Some recipes claim that a traditional Bialy shall also contain garlic and poppyseed and even breadcrumbs.
But nobody seems to know for sure.
If there is anybody out there who can enlighten us about this, it would be most welcome.
Most recipes used commercial yeast, but as you have probably figured out, I will go for a sourdough starter instead.