Sour Cream Apple Pie

Ingredients:
1 1/4 cups sour cream
3/4 cup granulated sugar
1/4 cup all-purpose flour
1/4 teaspoon salt
2 teaspoons vanilla
1 egg
6 cups 1/4-inch slices peeled baking apples

Topping
1/2 cup all-purpose flour
1/2 cup chopped walnuts
1/4 cup granulated sugar
1/4 cup packed light brown sugar
1/2 teaspoon ground cinnamon
Dash salt
3 tablespoons cold butter

Directions
Heat oven to 400 degrees F. line a pie crust in a 9 inch pie plate ( I usually cheat and use the pre-packaged rolled crust)

In large bowl, beat sour cream, granulated sugar, flour, salt, vanilla and egg with wire whisk until well blended; stir in apples. Pour into crust-lined pie plate.

Bake 15 minutes. Reduce oven temperature to 350 degrees F; bake 30 minutes longer.

Meanwhile, in medium bowl, mix all topping ingredients except butter. With pastry blender or fork, cut in butter until mixture looks like coarse crumbs; refrigerate until ready to use.

Sprinkle topping over pie. Bake 20 to 25 minutes longer or until topping is golden brown. Cool completely on cooling rack, about 2 hours. Cover and refrigerate any remaining pie.