Spiced Apple Crumble Pie with Oat Topping

1.Prepare the Pie Crust: In a large bowl, whisk together the flour and salt. Cut in the cold butter using a pastry blender or your fingertips until the mixture resembles coarse crumbs with some pea-sized pieces of butter remaining. Gradually add the ice water, 1 tablespoon at a time, mixing until the dough just comes together. Divide the dough in half, form each half into a disk, wrap tightly in plastic wrap, and refrigerate for at least 1 hour.

2.Prepare the Apple Filling: In a large bowl, combine the sliced apples, brown sugar, granulated sugar, flour, lemon juice, cinnamon, nutmeg, allspice, and salt. Toss gently until the apples are evenly coated. Set aside while you prepare the topping.

3.Prepare the Oat Crumble Topping: In a medium bowl, whisk together the flour, oats, brown sugar, and cinnamon. Cut in the cold butter using a pastry blender or your fingers until the mixture forms large, moist crumbles. Place in the refrigerator until ready to use.

4.Assemble the Pie: Preheat your oven to 200°C (400°F). On a lightly floured surface, roll out one disk of dough into a 12-inch circle. Carefully transfer the dough to a standard 9-inch pie dish. Trim the edges, leaving a 1-inch overhang, and crimp the edges decoratively. Pour the apple filling into the crust, mounding slightly in the center.

5.Top the pie by evenly sprinkling the entire oat crumble mixture over the apples, ensuring good coverage. If the edges of the bottom crust start to look too brown during baking, cover them loosely with aluminum foil.

6.Bake for 20 minutes at 200°C (400°F). Then, reduce the oven temperature to 175°C (350°F) and continue baking for another 40 to 50 minutes, or until the topping is golden brown and the filling is bubbling thickly. A knife inserted into the apples should meet little resistance.

7.Cool the pie completely on a wire rack for at least 3 hours before slicing to allow the filling to set properly. Serve warm or at room temperature.