This crumb-topped apple pie combines a buttery crust with a sweet and spiced apple filling, topped with a crunchy oat crumble.
Preheat your oven to 350°F (175°C).
Preheating ensures even cooking from the start.
In a mixing bowl, combine the flour, brown sugar, butter, and oats until crumbly. Reserve one cup of this mixture for the topping.
Use cold butter for a better crumb texture.
Press the remaining crumb mixture into an ungreased 9-inch pie plate to form the crust.
Press firmly to ensure the crust holds together.
In a saucepan, combine the sugar, cornstarch, and water. Cook over medium heat, stirring constantly, until thickened.
Stir continuously to prevent lumps.
Remove from heat and stir in the apples, cinnamon, and vanilla extract.
Coat the apples evenly for consistent flavor.
Pour the apple mixture into the prepared crust and sprinkle the reserved crumb mixture on top.
Spread the topping evenly for a uniform bake.
Bake in the preheated oven for 45 minutes, or until the topping is golden brown and the filling is bubbly.
Place the pie on a baking sheet to catch any drips.
Allow the pie to cool slightly before serving. Enjoy your homemade crumb-topped apple pie!
Cooling helps the filling set for easier slicing.