Hamptons Verified

Yes. Go early — the donut case thins out by mid-morning in season and there is no second location.

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Café · Sag Harbor · $$

Grindstone Coffee & Donuts

Sag Harbor's cult donut shop since 2016. Seasonal flavors like maple sea salt and Nutella s'mores, plus a full espresso bar.

Specialty
Small-batch donuts, espresso, morning pastries
Hours
Daily 7am-4:30pm
Address
7A Main St, Sag Harbor, NY 11963
Phone
+1-631-808-3370
Website
Instagram
Year-round
Yes
Opens
Before 8:00 AM
Outdoor seating
No

Source: Grindstone Coffee & Donuts official website. Last verified 2026-04-11.

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