In a bowl, whisk together the flour and salt.

Cut in the cold butter using a pastry blender or your fingers until the mixture resembles coarse crumbs.

Gradually add ice water, mixing until the dough just comes together. Do not overmix.

Form the dough into a disc, wrap in plastic wrap, and refrigerate for at least 30 minutes.

In a large bowl, combine the sliced apples, sugar, flour, cinnamon, and nutmeg.

Toss to combine.

Preheat oven to 375°F (190°C).

On a lightly floured surface, roll out the dough to fit a 9-inch pie plate.

Transfer the dough to the pie plate and trim the edges.

Pour the apple filling into the pie crust.

Dot the top with butter.

Bake for 45-50 minutes, or until the crust is golden brown and the filling is bubbly.

Let cool completely before serving.