> clay(?) pots Yep, clay. It doesn't really matters (you can use anything) but clay pots have a thick walls and keeps the temp for long, so they are often used

> clay(?) pots Yep, clay. It doesn't really matters (you can use anything) but clay pots have a thick walls and keeps the temp for long, so they are often used for that long after a wood and coal burning stoves became extinct in regular homes. All Eastern Europe has a tons of variations of different recipes for cooking meals in pots.