Potato-mushroom Gratin

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Ingredients

  • 5 tablespoons olive oil, divided
  • 2 1/2 pounds medium Yukon Gold potatoes, peeled, cut lengthwise into 1/8-inch-thick slices
  • 1 1/2 teaspoons coarse kosher salt plus additional for mushrooms
  • 3/4 teaspoon freshly ground black pepper plus additional for mushrooms
  • 1 1/4 cups (or more) heavy whipping cream, divided
  • 1 cup freshly grated Parmesan cheese (about 3 ounces), divided
  • 2 tablespoons chopped fresh thyme
  • 6 garlic cloves, thinly sliced
  • 12 ounces fresh crimini (baby bella) mushrooms, sliced

Description

Luscious And Satisfying, A Little Of This Gratin Goes A Long Way.

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