01 - Set oven to 350°F.
02 - In a large bowl, combine all-purpose flour and salt. Work in the cold, cubed butter using a pastry cutter or fingertips until coarse crumbs form. Drizzle in ice water and mix just until dough comes together. Divide dough in two, shape each into a disk, wrap in plastic, and refrigerate for 30 minutes.
03 - Roll out one dough disk on a floured surface to fit a 9-inch pie pan. Lay the dough in the pan, trim excess, and chill until ready to fill.
04 - In a medium saucepan, combine granulated sugar, black cocoa powder, chopped bittersweet chocolate, and unsalted butter. Warm over low heat, stirring gently until fully melted and blended. Remove from heat and whisk in heavy cream, eggs, vanilla extract, and salt until smooth and glossy.
05 - Pour prepared chocolate mixture into the chilled pie crust. Smooth the surface with a spatula.
06 - Roll out the second dough disk and use a sharp knife or cutters to create Jack Skellington’s face pieces: two large ovals for eyes, small holes for nostrils, and a stitched mouth. If desired, mix the egg yolk with a drop of black food coloring gel and brush the pieces for extra contrast.
07 - Place Jack Skellington’s face cutouts gently on top of the filled pie, arranging to form the iconic features.
08 - Transfer pie to a preheated oven and bake for 45 minutes, until the filling is set but still slightly wobbly in the middle.
09 - Allow pie to cool completely on a rack, letting the filling firm up before slicing and serving.