Chocolate Cream Pie

Instructions
Preheat oven to 350°F.
Add the whole Oreo cookies to a food processor and pulse into fine crumbs. Pour the crumbs into a bowl and stir in melted butter.
Press mixture evenly and firmly into the bottom and up the sides of a 9in pie dish. Bake for 10-12 minutes. Set aside to cool.
To a medium sauce pan over medium heat, add the sugar, and milk and whisk well to combine. Bring mixture to a simmer, whisking frequently.
Meanwhile, add the egg yolks and cornstarch to a bowl and whisk until smooth.
Once the saucepan mixture is simmering, add a few spoonfuls of the hot liquid into the egg yolks and whisk to temper the eggs. Add a few more spoonfuls of the hot liquid into the egg yolks. Then slowly whisk the egg yolk mixture back into the saucepan. Whisk constantly until the mixture begins to thicken and comes to a very gently boil (big bubbles begin to break the surface).
