I didn’t know about these, but perhaps someone else does. Where do you buy them?
https://en.wikipedia.org/wiki/Tortas_de_aceite
I ordered them from La Tienda. In my little burg, everything interesting is mail ordered. They were having a sale on small packages of Serrano ham and manchego cheese, both of which have always been twenty times out of my price range. If no one else has tried to make them, I will volunteer and report back.
I was mostly curious about the anisette and fennel. I don’t think I would like biting into a fennel seed.