Potato Gratin With Porcini Mushrooms and Mascarpone Cheese

"Submitted by Ingrid Quillen for Mascarpone Madness."
photo by Henny Adriansyah photo by Henny Adriansyah
photo by Henny Adriansyah
Ready In:
1hr 45mins




  • Place porcini mushrooms in a medium bowl and cover with boiling water. Place a small bowl atop the mushrooms so that they stay submerged in the hot water. Soak for 20 minutes, then drain and coarsely chop the mushrooms.
  • Place butter and oil in a medium skillet over medium heat. When the butter has melted add the mushrooms and saute just until they begin to brown, about 3 minutes. Sprinkle with salt and pepper and remove from heat. NOTE: this step can be done the day ahead. Refrigerate the browned mushrooms until ready to use.
  • Whisk 1/4 cup parmesan, the mascarpone, whipping cream, garlic and nutmeg in a small bowl. Add salt and pepper to taste. NOTE: this step can be done the day ahead - simply cover the bowl and chill until ready to use.
  • Preheat the oven to 325°F Butter a wide shallow 2-quart baking dish. Arrange 1/4 of the potato slices in the bottom of the dish. Sprinkle lightly with salt and pepper. Scatter 1/4 of the mushroom mixture over all. Follow with another layer of 1/4 of the potatoes, and another layer of 1/4 of the mushrooms. Spread half of the cheese mixture over all, shaking the dish if necessary to allow the layers to settle.
  • Cover the cheese layer with a layer of potatoes, a layer of mushrooms, another layer of potatoes and the last of the mushrooms. Finally spread all of the remaining cheese mixture over the top. Sprinkle the 2 tablespoons of parmesan over all.
  • Place the gratin dish on a rimmed baking sheet. Bake until the top is brown and the sauce is bubbling at the edges, about 1 hour and 15 minutes. Let rest 15 minutes before serving. NOTE: this dish can be made 2 hours ahead of time. Let stand at room temperature. Tent loosely with foil and rewarm at 300 F for 20 minutes.

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Although I am a US citizen, I have spent most of my adult life living outside of the States. I've raised my family all over the world - and I have to say that my four kids are pretty terrific! I am always looking for recipes that only call for basic ingredients. Because I don't live in the US, I often can't find packages or this, or jars and cans of that, even certain spices can be tricky. My favorite cookbooks are the New Joy of Cooking, and anything by Nigela Lawson. My passions are cooking and eating - big surprise there. I have no pet peeves, I don't keep any peeves around long enough to make them into pets. I especially love baking, but I'm trying to get away from that - the carbs are starting to stick to my hips a little too easily. I took a Sushi making course recently. It was a lot of fun; I now know that I need to GO OUT for Sushi, not make it myself.
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