Looks amazing! I'll be honest I haven't heard of this before but it looks good and I am going to look into making a plant based version of it myself. Thanks for sharing!
It's a polish staple. My grandmother and mother used to always have it as a breakfast spread. It and mizeria are something I'm perpetually trying to get exactly right, the latter proves difficult.
Unfortunately Polish food is extremely dairy and meat heavy, which makes veganising a lot of foods I have positive memories of quite tricky.