Sour Cream Apple Pie

My mouth is watering just typing this...it's THAT good. Even if you aren't a pie person, you will NOT be disappointed.

1 cup sour cream
3/4 cup sugar
2 tbsp. flour
1/4 tsp. salt
1 tsp. vanilla
1 tsp. cinnamon
1 egg
3 1/2 cups diced/sliced apples (about 2 lg apples).

Topping
1/2 cup brown sugar
1/3 cup flour
1/4 cup butter

Beat together sour cream, sugar, flour, salt, vanilla, cinnamon and egg. Add fresh diced/sliced apples & pour into 9" unbaked pie shell. Bake at 400 degrees for 25 minutes. Removed and sprinkle with well mixed topping mixture. Bake an additional 20 minutes.
Serve warm with vanilla ice cream