[Iwate Pref. Morioka] Azuma-Ya
In Morioka (Northern side of mainland Japan, 450km away from Tokyo), “wanko soba” is very famous. And this restaurant is very famous for it. You should go there at least once when you visit Morioka. but since Morioka is also famous for another kind of cold noodle called “Reimen”, you may not know which one to choose :-). At this restaurant, you can get a certificate to prove the number of bowls you have finished. If you order the most expensive set, you will also receive a wooden certificate.
I recommend the “4. Wanko Soba” which comes with a wooden certificate plus a paper certificate of how many bows you ate, and it also comes with various toppings.
1-8-3 Nakano Hashi Dori, Morioka shi, Iwate Ken