Spray a 9-inch deep-dish pie pan with baking spray with flour.
On a lightly floured surface, roll All-Butter Piecrust into a 14-inch circle. Transfer to prepared pan, pressing into bottom and up sides. Trim excess dough, fold edges under, and crimp as desired. Freeze until firm, about 20 minutes.
Preheat oven to 375°F (190°C).
Top prepared crust with a piece of parchment paper, letting excess extend over edges of pan. Add pie weights. Place on a foil-lined rimmed baking sheet.
Bake until crust is mostly dry and set, about 35 minutes. Carefully remove parchment and weights, and bake until inside of crust is dry and edges are lightly browned, about 5 minutes more. Let crust cool completely.
Reduce oven temperature to 325°F (170°C).
In a large bowl, whisk together cream, eggs, salt, and pepper (if using) until well combined.
Spread desired fillings in bottom of crust. (See Note.) Pour cream mixture all over filling. Carefully return pie pan to foil-lined baking sheet. Tent edges of crust with foil.
Bake until filling is set and top is golden brown, 50 minutes to 1 hour. Let cool for 20 minutes. Best served warm.