I don't think there is a single place serving this in my whole home country. Fortunately there's an asian market even in my home city to get tteok and gochujang.
Hello,
I think the link got broken.
I get a page not found error on the website.
I think I ate a fairly similar dish in Paris (15eme). We had some pretty authentic Korean restaurants there and I really enjoyed discovering this food.
PS: I was curious about the dish and the Wikipedia page is pretty cool: