Ohban-yaki or Imagawa-Yaki
Imagawayaki is a Japanese dessert often found at festivals. It is made of batter in a special pan (similar to a waffle iron but without the honeycomb pattern), and filled with sweet azuki bean paste. Imagawayaki are similar to Dorayaki, but the latter are two separate pancakes sandwiched around the filling after cooking, and are often served cold.