Trying to find recipe for Tofu Dish I ate in Japan

I went to Japan last year and had a lot of food. But the 2nd most memorable, first being ramen, was a Tofu dish that I had at Harajuku Gyozaro. I did some research and found out it is called TanTan-TOFU. Does anyone know of a recipe for this dish? Also what type of tofu is being used, it looks similar to silken tofu to me. Thanks in Advance