Bosnian ingr - peci prasak
Hi KD - I googled it and from some of the stuff I found online, I think it's baking soda. While I didn't find an exact translation, there was an ad in serbian for toothpaste that contains peci prasak and that's what leads me to believe that it's baking soda. Does that make sense in the context of your recipe?
Hi again KD. I spoke with a Bosnian friend and she said that it is baking soda, but there is something else in there that's also a leavening agent. She doesn't know what it is, but apparently it doesn't exist in the US. Do you have any ethnic stores around where you live? I know that when I lived in Connecticut, there was a Polish butcher close to me that stocked all kinds of thingss like that (I used to go there to buy Czech flour.) Good luck in your search!