Step 1

First, make the pie crust. Combine the flour, sugar, and salt in a large bowl. Add the cubed butter and toss to coat. Dump the mixture out onto a clean surface and use a rolling pin to roll the butter into thin sheets, combining it with the flour. Use a bench scraper to scrape the rolling pin and to bring the mixture back into a pile as necessary. Continue until all of the butter is incorporated into the flour. Mixture will be very flaky. Return mixture to the bowl and place in the freezer for 15 minutes to chill the butter.

Step 2

Remove from freezer and add the buttermilk. Use a spoon and then your hands to stir the mixture until it comes together into a ball. If mixture is too dry, add the water a tablespoon at a time. Divide the dough in two and flatten into disks. Wrap each disk in plastic wrap and chill in the fridge while you make the filling.

Step 3

Put the apple slices in a large bowl and drizzle with fresh lemon juice. Toss to coat the apples. This will keep the apples from browning. Add the cranberries, sugar, flour, cinnamon, orange zest, and vanilla extract. Stir until combined.

Step 4

Preheat oven to 375°F.

Step 5

Remove one disk of pie dough from the refrigerator. On a lightly floured surface, use a rolling pin to roll out the dough into a 12-inch circle. Dough should be about 1/4 inch thick. Transfer dough to a 9-inch pie pan. Pat with your fingers, making sure it is smooth. Trim the extra overhang of dough with a knife and set aside. Fill pie with apple cranberry filling. Place the pie in the fridge while you roll out the second disk of dough.

Step 6

Roll our the dough and use a pastry wheel, pizza cutter, or sharp knife to cut the pie dough into strips, about 1-2 inches wide. Carefully weave the pie dough strips over and under one another. Press the edges of the dough strips into the bottom pie crust edges to seal. Trim off the excess dough and pinch the edges using your fingers to create a pretty edge. You can also use a fork to seal the edges. Using a pastry brush, lightly brush crust and edges with egg wash. Sprinkle pie with turbinado sugar, if using.

Step 7

Place the pie on a foil-lined baking sheet, just in case the filling bubbles out.

Step 8

Bake for 60-80 minutes until the crust is golden brown and filling is bubbling. If the top of the pie is browning too quickly, you can tent the top with aluminum foil or use a pie crust shield. Make sure you check it halfway through to be safe.

Step 9

When the pie is done baking, remove from oven and cool completely before serving so it can set up, about 3 hours.