2 egg yolks
2 c. water
2 c. milnot (1 can)
1 c. sugar
4 tbsp. flour or cornstarch
3 tbsp. cocoa

Put pan on stove and heat yolks, water, and milnot (do not boil). Add all other ingredients until mixture thickens or boils. Add a half a stick of butter. Pour in pie shell and top with Cool Whip.