6 russet potatoes, scrubbed and washed |
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4 tablespoons (1/2 stick) unsalted butter |
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2 leeks, cleaned, cut into 1/4-inch dice |
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Kosher salt and fresh ground black pepper |
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2 cups sliced cremini mushrooms |
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1/2 teaspoon fresh thyme leaves |
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10 thin slices prosciutto, torn |
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1/3 cup finely sliced fresh chives |
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