Instructions:
Preheat oven to 350°F.
In a large saucepan, whisk together the egg yolks, flour, sugar, and cocoa powder until smooth.
Slowly whisk in the milk until the mixture is well combined.
Place the saucepan over medium heat and cook, stirring constantly, until the mixture thickens and begins to boil.
Remove the saucepan from heat and stir in the vanilla extract.
Pour the mixture into a pre-baked 9-inch pie crust.
Bake for 12-15 minutes, or until the filling is set.
Allow the pie to cool to room temperature before serving.
Optional: top with whipped cream or chocolate shavings before serving.
Enjoy your delicious Old Fashioned Chocolate Pie!
