Grindstone Coffee & Donuts, located in Sag Harbor since 2016, is a cozy spot that takes donuts and coffee seriously. Their brioche and cake donuts are made fresh daily with top-notch ingredients, and their in-house glazes and fillings are crafted from local organic goods. The coffee selection is on point too, featuring premium brews from local and national roasters served up by skilled baristas. With a full espresso menu, specialty teas, and endless cold brew, Grindstone is the go-to spot for a delicious treat and a caffeine fix.