Creamy Apple Crumble Pie

1. Prepare the Crust

Start by combining the ice water and sour cream in a small bowl. In a food processor, mix the flour, sugar, and salt until combined, which should take about five seconds. Scatter the frozen butter over the top and pulse until the butter pieces are the size of large peas, around ten pulses. Add the sour cream mixture and pulse until the dough forms clumps and no dry flour remains, which should be about twelve pulses. Turn the dough onto plastic wrap, form it into a 4-inch disk, wrap tightly, and refrigerate for at least one hour.

2. Prepare the Filling

While the dough chills, toss the apples with the melted vanilla ice cream, raisins (if using), granulated sugar, lemon juice, vanilla extract, cinnamon, and salt in a large bowl. Let this mixture sit at room temperature for one to two hours so the apples can absorb all the flavors.

3. Preheat the Oven

Adjust your oven rack to the lower-middle position and heat the oven to 350 degrees Fahrenheit.

4. Roll Out the Dough

Let the chilled dough sit on the counter for about ten minutes to soften slightly. Roll it out on a lightly floured surface into a 12-inch circle. Carefully transfer the dough to a 9-inch pie plate, allowing the excess to hang over the edge. Ease the dough into the plate, trim the overhang to about 1/2 inch, tuck it under, and crimp the edges. Wrap the dough-lined plate loosely in plastic wrap and refrigerate until firm, about 30 minutes.

5. Prepare the Topping

In a bowl, stir together the flour, light brown sugar, melted butter, and salt until no dry spots remain, and the mixture forms clumps. Refrigerate this topping until you are ready to use it.

6. Assemble the Pie

Place a parchment paper-lined rimmed baking sheet under the pie to catch any drips. Distribute the apple mixture evenly in the pie plate, pressing it into an even layer. Pour any remaining liquid from the bowl over the apples. Break the topping mixture into pea-sized crumbs and distribute it evenly over the apple mixture, patting it lightly to adhere.

7. Bake the Pie

Bake the pie on the baking sheet for about one hour and ten minutes, rotating it halfway through. The pie is done when the top is golden brown, and a paring knife inserted into the center meets no resistance, indicating the apples are fully cooked.

8. Cool and Serve

Allow the pie to cool on a wire rack for at least four hours, or preferably overnight, to let the flavors meld together. Once cooled, slice and serve your creamy apple crumble pie.