1 1-crust pie dough
1 2/3 cups water
3 tablespoons cornstarch
5 tablespoons cocoa
1 (14-ounce) can sweetened condensed milk
3 egg yolks, beaten
2 tablespoons butter
1 teaspoon vanilla
Preheat oven to 450 (F). Line pie plate with pie pastry, sprinkle bottom lightly with cinnamon sugar mix. Bake at 450 (F) for 10 - 12 minutes or until very lightly browned. Cool on cooling rack.
Mix together water, cornstarch and cocoa until smooth. Stir in sweetened condensed milk and egg yolks.
Cook in medium saucepan over medium heat until it is thickening. Remove from heat and stir in vanilla and 2 tablespoons butter until incorporated. Cool slightly.
Pour into baked pie shell, cover and chill until ready to serve. Top each slice with home-made whipped cream.