at Changgyeonggung, Seoul
If you have a chance to visit South Korea, this place is my recommendation. House is very old and still keep ancient style. Owner is very kind and food is really delicious. It is located at front of the temple Daeeungsa, so you easily can find it by asking temple name: info
A few days ago, I attended the sales kickoff meeting which held in Seoul, Korea. I'm not a sales people, but because we all connected in somehow, I attended and we shared lots of information.