INGREDIENTS
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1 sheet frozen Puff Pastry?, thawed
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5 tbsp all-purpose flour, plus more for dusting?
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5 tbsp unsalted butter?
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3 medium potatoes, peeled and cut into 1-inch pieces?
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3 medium carrots, peeled and cut into 1-inch pieces?
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2 celery stalks, sliced into 1/2" pieces
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15 pearl onions
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12 oz cremini mushrooms, stems trimmed
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4 garlic cloves, minced
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1 cup Madeira or Cognac
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2 cups chicken stock
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1 cup whole milk or cream?
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5 cups cooked chicken, torn into bite-sized pieces?
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1 cup frozen green peas?
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2 tbsp chopped fresh flat-leaf parsley?
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2 tbsp fresh thyme leaves?
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2 tbsp herbes de provence
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1/4 tsp cayenne
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3 tsp coarse salt?
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1 tsp freshly ground pepper?
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Egg wash:
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1 large egg?
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2 tbsp mil