Romanian Potato Thingy

I saw a picture of this delicious dish on Pinterest last week. It looked so good I had to try it. However, when I clicked on the picture it sent me to a cooking website written in Romanian. I figured out how to translate it, but it was a rough translation at best. And I had to further translate the measurements from grams. This weekend I gave it a whirl. How hard could it be?
Took a good 2-3 hours. But it was quite good and now I feel like I got the hang of it so I can improve and speed it up next time!

Here is the link to the recipe: http://barbatlacratita.blogspot.com/2010/11/rulada-aperitiv-din-cartofi.html I feel like you can put anything you want inside as well.