Streusel Apple Pie

Schamber 1 Egg

1 cup Sour cream -- room temp

3/4 cup Sugar

2 tablespoons Flour

1/2 teaspoon Vanilla

ds Salt 2 1/4 c Cooking apples, finely chpd, -peeled (2-3 apples) 1/4 ts Grated lemon peel 1 9" single-crust pie shell, -unbaked