Apple Sour Cream Pie

*APPLE - SOUR CREAM PIE*
A grand dessert for Thanksgiving Dinner.

	Pastry for Single crust pie
1	Egg, slightly beaten	1
1 cup	Sour cream	250 mL
3/4 cup	Sugar	175 mL
2 tbsp	Flour	30 mL
1/4 tsp	Cinnamon	1 mL
1 tbsp	Vanilla	15 mL
2 cups	Sliced tart peeled apples	500 mL
TOPPING
1/3 cup	Flour	75 mL
1/3 cup	Brown sugar, packed	75 mL
2 tbsp	Butter, firm	15 mL
1/2 tsp	Cinnamon	12 mL

Preheat over to 350°F [180°C]. Combine egg and sour cream, stir in sugar, flour, vanilla and cinnamon. Stir in apples. Pour into unbaked pastry-lined pie plate and bake for 45 minutes or untill center is set.
TOPPING
Mix until crumbly. Sprinkle on the pie and continue baking for 15 minutes or until the crumbs are brown. Chill