Stir together flour, butter, and 3/4 teaspoon salt in a large bowl.
Using your fingertips, rub butter into flour mixture until mixture resembles coarse meal.
Make a well in center.
Stir together 1 egg yolk with enough ice water to equal 1/4 cup; pour into well, and stir into flour mixture until just moistened.
Turn dough out onto a lightly floured surface.
Knead dough just until it comes together.
Divide dough into 2 disks.
Wrap each disk in plastic wrap, and chill at least 8 hours or overnight.
Preheat oven to 400°F (200°C).
Unwrap 1 dough disk, and roll into a 13-inch round on a lightly floured surface; fit into a 9-inch pie pan.
Chill 10 minutes.
Meanwhile, soak potato slices in ice water to cover (to remove surface starch) about 5 minutes; drain and pat slices dry.
Toss potatoes with parsley, pepper, and remaining 1/4 teaspoon salt.
Place bacon in a large skillet, and cook over medium-high, stirring occasionally, until wilted and just browned on edges, about 2 minutes.
Drain bacon on paper towels.
Arrange half of potato slices in refrigerated pie shell, overlapping slices.
Sprinkle evenly with bacon; top with remaining potato slices, overlapping slices.
Spread crème fraîche over potatoes, and arrange egg slices on top.
Unwrap remaining dough disk, and roll into a 10-inch round on a lightly floured surface.
Place round on top of pie.
Trim edges and fold dough under.
Crimp edge as desired.
Using the tip of a knife, prick top of pie twice.
Stir together 1 teaspoon water and remaining egg yolk; brush over top of pie.
Bake pie in preheated oven on middle rack 20 minutes; reduce oven temperature to 350°F (175°C), and bake 50 minutes.
Reduce oven temperature to 300°F (150°C), and bake until top is golden brown, about 10 minutes.
Let pie rest 10 minutes before serving.
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Eggs: If you make a recipe that uses raw eggs, please consider using pasteurized eggs.
Allergens: Food allergens have not been identified in each individual recipe. Please use caution if you have any food allergies. Have questions about a specific recipe? Feel free to
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