1/3 c. flour
1/2 c. white sugar
2 c. milk
2 tbsp. butter
1 tsp. vanilla
Pinch of salt
3 egg yolks, slightly beaten
1 (9 inch) baked pie shell

STREUSEL MIX:

1/3 c. chunky peanut butter
3/4 c. confectioners' sugar

Mix dry ingredients together; add wet ingredients and blend well. Slowly cook filling until thick. Cool well. Blend peanut butter and confectioners' sugar together. Sprinkle 2/3 of this into bottom of baked pie shell. Pour cooled filling on top of crumb mixture. Top with Cool Whip and sprinkle remaining crumbs on top of pie. Set for a few hours in refrigerator before serving.