Let's check out the signature dish at a restaurant in Keelung's Chidu, and find out why the ginger duck soup is becoming a favorite among diners during winter days.

The high flame rises out of this pot and the boss of the restaurant does not worry about cost as every pot of ginger duck soup has aged ginger added along with rice wine with each pot bubbling over with this delicious ginger duck.

The juicy duck and fresh mountain vegetables along with duck and pig blood allowing each diner to have a big smile on their face.

The boss says some of the secrets include adding a little more rice wine and aged ginger.

It's not only this ginger duck soup that makes many people's mouth water, but this onion oil rice flour noodles.

Diners come to this famed ginger duck soup with some taking a taxi all the way to the restaurant to purchase this dish to bring it home.

The boss uses the best materials as business at the restaurant is quite good as he prepares this ginger duck every day.