INGREDIENTS
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2 recipes Savory Piecrust, blind baked
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2 1/2 cups milk
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2 cups water
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1 1/2 teaspoons salt
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1 teaspoon minced garlic
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2 bay leaves
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3 pounds russet potatoes (7 medium), peeled and thinly sliced lengthwise just before cooking
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6 ounces ham, cubed
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1 1/2 cups heavy cream
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1 cup grated Gruyere cheese
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1 cup freshly grated Parmesan cheese
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1 teaspoon finely chopped fresh thyme
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4 tablespoons unsalted butter, cut into small pieces
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1/2 teaspoon freshly ground black pepper