Lightly grease a 9-inch pie plate with vegetable oil. Place the bottom crust (store-bought or homemade crust) in the pan.

Apple Pie Filling; Prepare the apples by peeling and slicing them into bite-size pieces. Place the apples in a large mixing bowl.

In a medium bowl, whisk together 1 cup of sugar, 2 tablespoons of flour, cinnamon, nutmeg, and salt. Sprinkle over the apples and stir until the apples are coated in the flour mixture.

Pour the apple filling into the pie crust. Cut 2 tablespoons of butter into little pieces and place on the pie filling.

Crumb Topping: In another bowl, add the ¾ cup flour, ½ cup sugar, and ⅓ cup butter cut into pieces. Use a fork, pastry blender or food processor to mix and form small crumbs.

Sprinkle the crumbs over the pie and place the pie dish on a foil-lined cookie sheet.

Place pie on the middle oven rack and bake at 425 degrees for 20 minutes, then place a piece of foil (or a pie shield) to cover the top of the pie. Continue baking for an additional 30-40 minutes.

Remove the pie and let it rest on a wire rack for 15 minutes before serving warm with whipped cream or a scoop of vanilla ice cream.