For an extra layer of flavor, consider adding a pinch of nutmeg to the cream mixture. If you can't find sottocenere cheese, you can substitute another truffle cheese or a mix of Gruyere and Parmesan with a drizzle of truffle oil. Use a mandoline to get evenly thin potato slices. Adjust the cooking time based on your oven.
Chef John's Truffled Potato Gratin
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PREP TIME15 mins
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COOK TIME1 hrs
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TOTAL TIME1 hrs 15 mins
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SERVING6 People
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VIEWS106
Indulge in the ultimate comfort food with this decadent truffled potato gratin. Layers of thinly sliced potatoes, earthy mushrooms, and luxurious truffle cheese baked in a creamy, savory sauce create a truly unforgettable dish.
Ingridients
Adjust Servings
Nutrition
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Carbohydrate48 g
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Cholesterol152 mg
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Fiber4 g
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Protein16 g
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Saturated Fat27 g
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Sodium414 mg
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Sugar3 g
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Fat45 g
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Unsaturated Fat0 g
Follow The Directions
01
Step
20 mins
Sauté the Mushrooms: In a large skillet, melt 1 1/3 tablespoons of butter with olive oil over medium-high heat. Add the sliced mushrooms and cook, stirring occasionally, until they are browned and softened, about 15-20 minutes.
02
Step
5 mins
Preheat Oven: Preheat your oven to 350°F (175°C).
03
Step
5 mins
Prepare Garlic Butter: In a small bowl, combine the remaining 2 teaspoons of softened butter with the minced garlic. Use this mixture to grease the inside of a 9x13-inch baking dish.
04
Step
15 mins
Layer the Gratin: Layer one-third of the potato slices in the prepared baking dish. Season with half of the thyme, salt, and pepper. Spread half of the cooked mushrooms over the potatoes. Sprinkle half of the shredded truffle cheese over the mushrooms. Repeat layers, starting with another third of the potato slices, followed by the remaining thyme, salt, pepper, truffle cheese, and mushrooms. Top with the final third of potato slices. Season with salt and pepper.
05
Step
5 mins
Add Cream and Broth: Pour the heavy cream and chicken broth evenly over the potato layers. Season again with salt and pepper.
06
Step
5 mins
Top with Cheese: Sprinkle the remaining shredded truffle cheese over the top of the gratin.
07
Step
45 mins
Bake: Cover the dish loosely with aluminum foil, tenting it slightly so it doesn't touch the potatoes. Bake in the preheated oven for 45 minutes, or until the potatoes are tender.
08
Step
15 mins
Brown the Top: Remove the foil and continue baking for another 15 minutes, or until the top is golden brown and bubbly.
09
Step
10 mins
Cool and Serve: Let the gratin cool slightly before serving.
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Kathryn Hand
Mar 28, 2025I used regular cremini mushrooms and it was still delicious. I'll definitely be making this again.
Everardo Bergnaum
Jan 16, 2025I found the Sottocenere cheese at a local Italian market. It's worth the effort to find it!
Ian Schiller
May 31, 2024The potatoes were perfectly cooked and the sauce was so creamy. This is my new favorite side dish!
Roselyn Murazik
May 14, 2024This recipe is amazing! The truffle flavor is subtle but definitely present. My guests loved it!
Ike Torphy
May 12, 2024I added a pinch of nutmeg to the cream sauce for a little extra warmth. It was a nice touch.