Preheat your oven to 425°F (220°C). A hot oven ensures that the crust will be crispy and golden.

Peel, core, and slice the apples. Each slice should be about ¼ inch thick. Place them in a large bowl and set them aside.

In a saucepan over medium heat, melt the unsalted butter. Add the flour and whisk for about a minute to make a paste. Then, mix in the granulated sugar, brown sugar, and filtered water. Bring the mixture to a boil, and then reduce the heat, letting it simmer for about 2-3 minutes.

Remove the mixture from the heat and stir in the ground cinnamon and vanilla extract. The aroma at this stage is simply intoxicating.

Pour the mixture over the sliced apples and toss to coat evenly. This ensures that every apple slice is equally delicious.

Roll out one half of the pie dough and fit it into a 9-inch pie dish. Trim any excess dough around the edges. Fill the pie crust with the apple mixture, mounding it slightly in the center.

Roll out the second half of the dough and place it over the apples. Trim the excess dough and crimp the edges to seal. Create a few small slits in the top crust to allow steam to escape.

Bake in the preheated oven for about 45-50 minutes, or until the crust is golden brown and the filling is bubbling. Remember, your whole house will smell like a slice of heaven.