Cook the Apple Filling: Preheat the oven to 400°F (200°C). Line a large baking sheet with parchment paper. Set aside. In a large skillet over medium-high heat, melt the butter. Add the apples, brown sugar, vanilla, cornstarch, cinnamon, and ginger. Cook for 6-8 minutes, stirring occasionally, until the apples release their juices and the sauce thickens. Remove from heat and let cool slightly.
2 pounds apples, peeled, cored, & sliced 1/3” thick, 4 Tablespoons (57 g) salted butter, 1/2 cup (100 g) brown sugar, 1 teaspoon vanilla, 2 teaspoons cornstarch, 1 1/2 teaspoons cinnamon, 1/4 teaspoon ginger
Prepare the Pastry & Egg Wash: On a lightly floured surface (or directly on the baking sheet), roll out the thawed puff pastry sheets to slightly larger than their original size, about 9 x 11 inches. Place one sheet on the prepared baking sheet. In a small bowl, whisk the egg with 1 tablespoon of water to make the egg wash.
2 sheets (17 ounces) thawed puff pastry, 1 large egg
Add Filling: Spoon the cooled apple mixture evenly onto the puff pastry, leaving a 1/2-inch border around the edges.
Top & Seal: Gently lay the second puff pastry sheet over the apples. Brush the edges with egg wash. Pinch the edges together using your fingers and then a fork to seal the pie. Cut a few small slits in the top to let steam escape.
Egg Wash & Sugar: Brush the top of the pie with the remaining egg wash. Generously sprinkle turbinado sugar over the top for added texture and sweetness.
turbinado sugar, for sprinkling
Bake: Bake the pie in the preheated oven for 20-25 minutes, or until the puff pastry is golden brown and puffed up. Let the pie cool for at least 10 minutes before slicing and serving.
vanilla ice cream, for serving