POGACA recipe for January 7 Christmas

Hello,

For Serbian Christmas, on January 7, we break "pogaca" bread that has a coin hidden in it. The person who gets the coin has good luck for the while year.

I tried making it this past January but the result was a heavy rock!  It was quite laughable and I didn't save the recipe (that I found online).  I make my own sourdough and so I thought I could do this:)  Anyways I'd love to try it again this year and so I'm wondering if anyone out there is familiar with this bread and could share with me?

Thanks!

Mira