Heirloom Apple Crumble Pie

1. Prepare the pie dough

Combine the all-purpose flour, granulated sugar, and salt in a food processor. Add the chilled butter and shortening, then pulse until the mixture resembles coarse crumbs. Transfer this mixture to a bowl, sprinkle the chilled vodka and ice water over it, and fold the dough until it comes together. Wrap the dough in plastic wrap and chill it for 45 minutes.

2. Prepare the apple filling

Combine the Granny Smith and Golden Delicious apples with granulated sugar, light brown sugar, lemon zest, lemon juice, salt, and ground cinnamon in a Dutch oven. Cover and cook over medium heat, stirring occasionally, until the apples are tender but still hold their shape. Drain the cooked apples, reserving ¼ cup of the juice. Spread the apples on a rimmed baking sheet and let them cool to room temperature for about 30 minutes.

3. Roll out the dough and fill the pie

Preheat your oven to 425°F (220°C) and place a baking sheet on the lowest rack. Roll out one disk of the chilled dough into a 12-inch circle on a lightly floured counter. Carefully fit this dough into a 9-inch pie plate, allowing the excess dough to hang over the edges. Fill the pie with the cooled apple mixture and drizzle the reserved juice over the top.

4. Top the pie with second dough disk

Roll out the second disk of dough into another 12-inch circle and lay it over the filling. Trim any excess dough, fold the edges under, and crimp them to seal. Cut a few vents in the top crust to allow steam to escape during baking.

5. Brush and bake the pie

Brush the top crust with the beaten egg white and, if desired, sprinkle with a little additional sugar. Place the pie on the preheated baking sheet and bake until the crust is golden brown and the filling is bubbling, about 45 minutes to 1 hour. If the edges of the crust start to brown too quickly, cover them with foil to prevent burning.

6. Cool and serve

Once baked, let the pie cool on a wire rack before serving. This cooling step allows the filling to set properly, making it easier to slice and serve. Enjoy your delicious heirloom apple crumble pie!