1 (9 inch) pie shell, unbaked
4 med. peaches, sliced
1 (8 oz.) container sour cream
1 tsp. vanilla extract
3 lg. egg yolks
1 c. sugar
1/4 c. flour

Line pie shell with sliced peaches. Mix sour cream, sugar, vanilla, egg yolks and flour together with whisk until smooth. Pour over peaches. Bake for 30 minutes at 425 degrees.

Make streusel topping: 1/4 c. butter 1/2 c. flour

Mix until crumbly and sprinkle evenly over pie and bake 15 minutes longer. Cool and serve.