World's Best Chocolate Cream Pie

Steps

1. 1In a food processor, combine graham crackers, pecans, brown sugar, and melted butter. Pulse until you get a fine uniform crumb mixture. Empty crumbs into a 9-inch pie dish, using your hands to flatten and form the crust. Bake at 350° F for 10 minutes.
2. 2Remove from oven and let cool. Refrigerate for a few hours to get it nice and set.
3. 3In a bowl, whisk together cornstarch, sugar, salt, and egg yolks. Whisk for a few minutes until the mixture is a pale yellow color. Set aside.
4. 4In a medium saucepan, combine buttermilk and heavy cream. Heat to a gentle simmer just until you start to see little bubbles on the sides.
5. 5Ladle the warm cream mixture into the egg yolk mixture, 1/2 cup at a time, whisking well between each addition. Continue until all of the warm cream has been added. Transfer mixture back to the stove and heat on medium heat, about 5-6 minutes, whisking often, until the mixture becomes thick and coats the back of a spoon easily.
6. 6Turn the heat off and add the finely chopped chocolate. Stir in until combined.
7. 7Add the chocolate filling to the cooled pie crust. Cover with plastic wrap and refrigerate for at least 5 hours.
8. 8Top with whipped cream and serve immediately. Refrigerate any leftovers.