Pungseong Bunsik is a snack shop in Seoul that sells crispy twi-gim and chapssal donuts. The twi-gim has a layered texture like pastry, and you can choose whether sugar is sprinkled on it. The twi-gim is not large and still tastes fine after it cools. The menu also includes wang donkatsu and mul naengmyeon and bibim naengmyeon.