Ingredients
Scale
- 1 unbaked 9-inch pie crust (homemade or store-bought)
- 6 cups Granny Smith or Honeycrisp apples (peeled, cored, and sliced)
- 1/2 cup granulated sugar
- 1 tablespoon lemon juice
- 2 tablespoons all-purpose flour
- 1 teaspoon ground cinnamon
- 1/4 teaspoon ground nutmeg
- 1 cup old-fashioned rolled oats
- 1 cup all-purpose flour
- 1 cup light brown sugar, packed
- 1/2 cup cold unsalted butter, cubed
- 1/2 teaspoon ground cinnamon
- 1/4 teaspoon salt
Instructions
- Preheat your oven to 375°F (190°C). Roll out your pie dough and fit it into a 9-inch pie plate. Trim and crimp the edges as desired. Place the prepared crust in the refrigerator while you prepare the filling to keep the butter in the dough cold.
- In a large mixing bowl, toss the sliced apples with the lemon juice. Add the granulated sugar, 2 tablespoons of flour, 1 teaspoon of cinnamon, and nutmeg. Stir until the apples are evenly coated. Let the mixture sit for 5 minutes to allow the juices to begin developing.
- In a separate medium bowl, whisk together the oats, 1 cup of flour, brown sugar, 1/2 teaspoon of cinnamon, and salt. Add the cold, cubed butter. Use a pastry cutter or your fingers to work the butter into the dry ingredients until the mixture resembles coarse crumbs with some pea-sized pieces of butter remaining.
- Remove the pie crust from the refrigerator. Pour the apple filling into the crust, spreading the slices out evenly. Pile the oat crumble mixture over the top of the apples, covering them completely. It might look like a lot of topping, but it will settle during baking.
- Place the pie on a baking sheet to catch any drips. Bake for 45 to 55 minutes. The topping should be deep golden brown, and you should see the apple juices bubbling near the edges. If the crust edges brown too quickly, cover them with a pie shield or aluminum foil halfway through.
- Remove the pie from the oven and place it on a wire rack. Allow the pie to cool for at least 2 hours before slicing. This cooling period is essential because it allows the filling to set, ensuring you get clean slices rather than a runny mess.
- Cook Time: 80 minutes