Grindstone Coffee & Donuts

In the Hamptons, where everything tends to be a bit extra, Grindstone keeps it refreshingly simple: excellent coffee and homemade donuts. That's it. That's the pitch. And it's made them a beloved institution in Sag Harbor.

The donuts are made fresh daily and sell out — if you want the good ones, get there early. The apple cider donut in fall is worth planning your entire day around. The classic glazed is perfectly cakey and not too sweet.

The espresso is properly pulled, the cold brew is smooth and strong, and the vibe is low-key in a way that feels intentional rather than accidental. This is where locals come to start their morning, away from the tourist crowds.