Swedish Apple Pie - cooking recipe

Ingredients

Pie
3 1/2 cups sliced apples (I use Granny Smith)
2 tablespoons flour
3/4 cup granulated sugar
1 pinch salt
1 egg
1 teaspoon vanilla extract
1/2 cup sour cream
1 (10 inch) unbaked pie shells
Topping
1/3 cup sugar
1/3 cup flour
1 teaspoon ground cinnamon
1/2 cup softened butter

Preparation

Boil apples just until beginning to soften; drain well.
Preheat oven to 350\u00b0F.
Mix drained apples, flour, sugar and salt Beat eggs and vanilla together and add to apple mixture.
Fold in sour cream.
Pour into pie shell and bake approx.40 minutes or until set.
While pie is baking, prepare topping as follows:
Combine sugar, flour, ground cinnamon and softened butter until mixture resembles coarse crumbs.
Remove pie from oven and sprinkle on topping.
Bake for an additional 15 minutes.
Cool.