Best Places to Eat in Bangkok/Chiang Mai?

Visiting Thailand for my honeymoon and I would like to take the wife (no pics) to some hidden gem type restaurants. We are going to be in Chiang Mai for 5 days so that is where I'm most curious about. Any suggestions from past visitors or OGers living in Thailand would be greatly appreciated.

In Chiang Mai (if you like vegetarian food) i'd recommend Pun Pun restaurant at Wat Suan Dok (Suan Dok temple). Great food.

In Bangkok, Soul Food Mahanakorn on Sukhumvit Soi 55 (Thonglor BTS stop) is a good place to start the night.

Thanks bjung!