Step 1

Using a food processor, blend the flour, butter, and pinch of salt until the mixture resembles breadcrumbs. Add 5 tablespoons of ice-cold water and pulse, until the pastry comes together in a ball. If needed, add more water one tablespoon at a time.

Step 2

Shape the dough into two discs, wrap, and chill for 30 to 40 minutes, or until firm.

Step 3

Peel and core the apples and cut into thin slices.

Step 4

In a large mixing bowl, mix together the sugar, pie spice, and cornstarch; add the apples and toss to combine.

Step 5

Preheat the oven to 400°F.

Step 6

Take the pastry discs out of the refrigerator. On a floured work surface, roll out the doughs into two 11-inch circles.

Step 7

Lightly spray a 9-inch pie plate with cooking spray. Carefully place one crust in the pan. Trim the edges even with the pie plate, and prick the pastry all over with a fork.

Step 8

Spoon the apple mixture into the prepared pie crust.

Step 9

Cut the second pie crust into 1-inch strips. Arrange the strips on top of the apples, lattice style, and press down gently, tucking the ends underneath the apples.

Step 10

Brush the top of the crust with the beaten egg, and sprinkle with brown sugar.

Step 11

Bake the pie for 45 minutes, or until golden. If the crust starts to get dark before the pie is cooked through, cover it with foil.

Step 12

Transfer the baked pie to a wire rack and allow it to cool before slicing.

Step 13

Serve with a scoop of vanilla ice cream.