Summarize this article in one sentence.
Turn on the oven and chill the pie while the oven is heating up. Refrigerate the pie until the pastry is firm and cold. You can refrigerate the assembled pie for up to 1 hour. Lay a sheet of parchment paper on a baking sheet and set the pie on it. Put the pie on the baking sheet into the preheated oven and bake it until the apples are soft and the pastry is golden brown. The baking sheet will catch any drips if the filling bubbles up and over the pie as it's baking.

Summary:
Preheat the oven to 400F (204C) and chill the pie for 30 minutes. Set the pie on a baking sheet and bake it for 75 minutes.