Ingredients
For the Crust:
2½ cups all-purpose flour
1 tablespoon granulated sugar
½ teaspoon salt
1 cup (2 sticks) cold unsalted butter, cubed
½ cup cold milk (or as needed)
For the Apple Filling:
6 cups apples, peeled and thinly sliced (Granny Smith or Honeycrisp work best)
¾ cup granulated sugar
2 tablespoons brown sugar
2 tablespoons all-purpose flour
1 teaspoon ground cinnamon
¼ teaspoon ground nutmeg
1 teaspoon lemon juice
1 teaspoon vanilla extract
For the Glaze:
Step-by-Step Method
1. Prepare the Crust
In a large bowl, whisk together the flour, sugar, and salt. Cut in the cold butter using a pastry cutter or your fingertips until the mixture resembles coarse crumbs with some pea-sized butter pieces remaining. Gradually add the cold milk, mixing gently with a fork just until the dough comes together. You may not need all the milk—add it slowly until the dough holds together when pressed.
Divide the dough into two equal portions, shape each into a flat disc, wrap in plastic wrap, and refrigerate for at least 30 minutes. This chilling step is crucial for a flaky crust.
2. Make the Apple Filling
In a large bowl, combine the sliced apples, granulated sugar, brown sugar, flour, cinnamon, nutmeg, lemon juice, and vanilla extract. Toss well until the apples are evenly coated. Let the mixture sit while you roll out the dough, allowing the flavors to meld and the apples to release some of their juices.
3. Assemble the Slices
Preheat your oven to 375°F (190°C). Grease a 9×13-inch baking pan or line it with parchment paper for easy removal.
On a lightly floured surface, roll out one portion of dough into a rectangle slightly larger than your pan. Gently transfer it to the pan and press it evenly into the bottom and slightly up the sides. Spread the apple filling evenly over the bottom crust.
Roll out the second portion of dough and carefully place it over the apples. Trim any excess overhang and crimp the edges gently to seal. Use a sharp knife to make a few small slits in the top crust to allow steam to escape during baking.
4. Bake
Bake for 40 to 45 minutes, or until the top crust is golden brown and the filling is bubbling up through the slits. If the edges brown too quickly, you can tent them with foil.
Remove from the oven and let cool completely in the pan on a wire rack. Cooling completely is important for clean slicing.
5. Glaze and Slice
In a small bowl, whisk together the powdered sugar, milk, and vanilla extract until smooth. The glaze should be thick but pourable. Drizzle the glaze generously over the cooled pastry.
Once the glaze has set, cut into squares or rectangles and serve.