POTATO & CELERY ROOT GRATIN WITH LEEKS

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Potato & Celery Root Gratin with Leeks image

Provided by Susan Spungen

Categories     Milk/Cream     Cheese     Potato     Side     Bake     Thanksgiving     Vegetarian     Dinner     Casserole/Gratin     Leek     Root Vegetable     Fall     Bon Appétit     Pescatarian     Wheat/Gluten-Free     Peanut Free     Tree Nut Free     Soy Free     No Sugar Added     Kosher

Yield Makes 8 to 10 servings

Number Of Ingredients 10

3 cups heavy cream
2 garlic cloves, peeled
1 sprig thyme plus 3 teaspoons fresh thyme leaves, divided
2 tablespoons (1/4 stick) unsalted butter, divided
3 leeks, white and pale-green parts only, halved lengthwise, thinly sliced crosswise
Kosher salt
2 pounds russet potatoes, peeled, very thinly sliced crosswise (1/8" thick)
1 pound celery root, peeled, very thinly sliced crosswise (1/8" thick)
2 cups grated Gruyère
Freshly ground black pepper

Steps:

  • Preheat oven to 350°F. Heat cream, garlic, and thyme sprig in a medium saucepan just until bubbles begin to form around edge of pan. Remove from heat; set aside to steep.
  • Melt 1 tablespoon butter in a medium skillet over medium heat. Add leeks; season with salt and cook, stirring often, until tender (do not brown), 10-12 minutes. Transfer to a small bowl and set aside.
  • Butter a 3-quart gratin dish with remaining 1 tablespoon butter. Layer 1/3 of potato slices and 1/3 of celery root slices evenly over bottom of baking dish. Cover with 1/3 of leeks, then 1/3 of Gruyère. Sprinkle with salt, pepper, and 1 teaspoon thyme leaves. Repeat layers twice more. Strain cream mixture into a medium pitcher and pour over vegetables.
  • Set gratin dish on a large rimmed baking sheet and cover tightly with foil. Bake for 1 hour. Carefully remove foil; continue baking until top is golden brown and sauce is bubbling, 25-30 minutes. DO AHEAD: Can be made 2 hours ahead. Let stand at room temperature. Tent with foil and rewarm in a 300° oven until hot, about 20 minutes.

gabriel pillay
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This gratin is a great way to use up leftover mashed potatoes.


Caroline Edet
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I would highly recommend this recipe to anyone who loves potato gratin.


Merinda Edwards
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This dish is a bit time-consuming to make, but it's worth the effort. The results are simply stunning.


Sumantha Govender
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I've tried several potato gratin recipes, but this one is by far my favorite. It's the perfect combination of creamy, cheesy, and crispy.


dk maden
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This gratin is the perfect side dish for a roasted chicken or fish dinner.


FRED MAC COMEDY TV
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I made this dish for a potluck and it was a huge success. Everyone raved about how delicious it was.


Jadika Burnett
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This gratin is a great way to get your kids to eat their vegetables.


Learn And Teach
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I'm not a big fan of celery root, but I really enjoyed this gratin. The cheese sauce and leeks helped to balance out the flavor of the celery root.


Anwar Sanji
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This dish is easy to make and doesn't require a lot of ingredients. It's a great weeknight meal.


Mohamed suhail Mohamed suhail
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I love the addition of leeks to this gratin. They add a subtle oniony flavor that really complements the potatoes and celery root.


Prashant Gharti
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I've made this recipe several times and it always turns out perfectly. It's a great way to use up leftover potatoes and celery root.


Passover Oluwatade
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This gratin is the perfect comfort food for a cold winter night.


Elmer Luna
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I made this dish last night and it was a hit with my family! Everyone loved the creamy, cheesy sauce and the crispy, browned top.


Erica Peeler
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This potato-celery root gratin with leeks is an absolute delight! The combination of flavors and textures is simply divine.