Mix Dry Ingredients: In a mixing bowl, combine the flour, sugar, and salt.
Cut in the Butter: Add the cold, cubed butter and use a pastry cutter or fork to mix it into the flour until it resembles coarse crumbs.
Add Ice Water: Gradually add ice water, one tablespoon at a time, until the dough starts to come together. Be careful not to overwork it.
Chill the Dough: Wrap the dough in plastic wrap and chill for 30 minutes in the refrigerator.
Prepare the Apple FillingSlice the Apples: Slice the peeled and cored apples thinly and place them in a large bowl. Mix Ingredients: Add the sugar, flour, cinnamon, nutmeg, salt, and lemon juice. Toss until apples are well-coated.
Make the Streusel ToppingCombine Ingredients: In a bowl, mix the flour, brown sugar, and cinnamon. Cut in Butter: Add the cold butter cubes and mix until the mixture is crumbly. You can use a pastry cutter, fork, or your fingers.
Assemble the PieRoll Out the Dough: Take the dough out of the refrigerator and roll it out on a lightly floured surface until it fits your 9-inch pie dish. Place in Pie Dish: Carefully lay the rolled-out dough into the pie dish, trimming any excess from the edges.
Add the Apple Filling: Pour the apple filling into the crust and spread it evenly.
Add the Streusel Topping: Sprinkle the streusel topping over the apples, making sure it covers them evenly.
Bake the PiePreheat the Oven: Preheat your oven to 375°F (190°C). Bake the Pie: Place the pie on the center rack and bake for 50-60 minutes until the crust is golden brown and the filling is bubbling.
Cool: Let the pie cool for at least 30 minutes before slicing. This helps the filling to set.