Total Time
2hrs
Prep 15 mins
Cook 1 hr 45 mins

http://www.seriouseats.com/recipes/2013/12/hasselback-potato-gratin-casserole-holiday-food-lab.html

Ingredients Nutrition

Directions

  1. Adjust oven rack to middle position and preheat oven to 400°F
  2. Combine cheeses in a large bowl.
  3. Transfer 1/3 of cheese mixture to a separate bowl and set aside.
  4. Add cream, garlic, and thyme to cheese mixture.
  5. Season generously with salt and pepper.
  6. Add potato slices and toss with hands until every slice is coated with cream mixture, making sure to separate any slices that are sticking together to get the cream mixture in between them.
  7. Grease a 2-quart casserole dish with butter.
  8. Pick up a handful of potatoes, organizing them into a neat stack, and lay them in the casserole dish with their edges aligned vertically.
  9. Continue placing potatoes in casserole, working around the perimeter and into the center until all potatoes have been added.
  10. Potatoes should be very tightly packed.
  11. If necessary, slice additional potato, coat with cream mixture, and add to casserole (see note above).
  12. Pour excess cream/cheese mixture evenly over potatoes until the mixture comes half way up the sides of the casserole. You may not need all excess liquid (see note above).
  13. Cover tightly with foil and transfer to oven.
  14. Bake for 30 minutes.
  15. Remove foil and continue baking until top is pale golden brown, about 30 minutes longer.
  16. Carefully remove from oven, sprinkle with remaining cheese, and return to oven.
  17. Bake until deep golden brown and crisp on top, about 30 minutes longer.
  18. Remove from oven, let rest for a few minutes, and serve.

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