When I was in Tokyo recently I had lunch at Tokyo Sundubu (http://www.tokyo-sundubu.net/menu.html) and had a delicious sesame sundubu. On the English menu it was listed as 'Sesame tantan sundub.
I was wondering if you have heard of anything similar or could name the ingredients?
The one I had contained pork, tofu, mushrooms, mustard greens, shrimp and a few small scallops. I'm not sure what the sesame came from--the broth was much lighter than regular sundubu (check the pic here: http://www.tokyo-sundubu.net/images/new01/sub_gomatan.jpg)
Would sesame paste be the key ingredient?