Cheesy Hasselback Potato Gratin

http://cooking.nytimes.com/…/1017724-cheesy-hasselback-pota…

Cheesy Hasselback Potato Gratin Recipe

This golden and glorious mash-up of potato gratin and Hasselback potatoes, from the acclaimed food science writer J Kenji López-Alt, has been engineered to give you both creamy potato and singed edge in each bite The principal innovation…

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