INGREDIENTS
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6 medium floury potatoes, such as Yukon gold
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2 pounds/ 1 kg mushrooms
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3 tablespoons butter
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2 tablespoons olive oil, more as needed
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1 large red onion, chopped
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3 cloves garlic
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1/2 cup/125 ml red wine
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1/2 cup/125 ml vegetable stock or water
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Handful fresh thyme leaves, chopped
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Kosher salt and freshly ground black pepper
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1 tablespoon flour
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1 handful fresh parsley, chopped
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1/4 cup/60 ml milk
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2 to 4 tablespoons butter
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Kosher salt and freshly ground pepper
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4 ounces/110 g Comte or Gruyere cheese, cut into very fine dice
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2 tablespoons grated Parmesan