2 ½ cups flour
½ tsp salt
1 tbsp sugar
1 cup cold, unsalted butter, cut into cubes
3- 4 tbsp ice water
5 granny smith apples, peeled, cored and sliced
1 cup brown sugar
1 tbsp lemon juice
1 tbsp cinnamon
¼ tsp nutmeg
¼ tsp salt
2 tbsp flour
2 tbsp butter, cubed
1 egg, beaten
1. In the bowl of a food processor pulse to combine flour, salt and sugar. Add cubed butter and pulse until mixture resembles coarse meal. Add 1 tbsp ice water at a time, pulsing to combine. Mixture should hold together when pressed together but will still look a bit crumbly. Transfer crumbly dough to countertop. Press into two discs. Wrap in plastic wrap and refrigerate for 1 hour.
2. While dough is chilling make apple pie filling. In a large bowl combine apples, brown sugar, lemon juice, cinnamon, nutmeg, salt and flour.
3. Preheat oven to 400F. Roll out 1 disc of pie dough into an 11-inch circle. Place in a 9-inch pie dish. Top with filling. Dot filling with cubed butter. Roll out remaining disc of dough to a 10-inch circle. Brush rim of pie dough with beaten egg. Top with dough and press edges to seal. Trim edges so there is a 1-inch overhang. Crimp edges of dough. Brush top of pie with egg.
4. Cut four or five slits in top of pie. Place pie on a rimmed baking sheet. Bake pie in bottom third of oven for 20 minutes. Reduce heat to 350F and continue baking until pie is bubbling and golden, about 40 to 50 minutes. Cool completely before serving.