Old Fashioned Chocolate Pie!

Instructions:
 Bake pie crust and let cool.
 Cook flour, cocoa, and sugar with milk, yolks, vanilla, and butter until thick.
 Pour into crust.
 Beat egg whites and cream of tartar until stiff; add sugar. Spread over filling.
 Bake at 350°F for 10-15 mins until golden.
 Cool and refrigerate before serving.

Enjoy