Roger Braintree
Google
Great wine list, with a huge number of wines available by the glass, which allows for really interesting options and great pairing. The staff know their stuff and are happy to talk about the options, so let them pick for you given that this is a bit off the beaten track. If you're a tourist here, trying and buying the local wine is a pleasure, but also a duty!
Food was really good. There was a dill risotto, which sounds a bit unusual but it just worked and the texture was spot on.
It's off the main path in Oia and has no caldera view, but it also had peace and a great vibe, which is honestly the real prize for most of Santorini. Also, you've been looking at that view all day long already.
Lastly, it has artwork exhibited from local artists, which is worth looking through because there a some nice pieces and they're very affordable. But also because if you want to remember Santorini, it beats a t-shirt from Mainland China every time.