Preheat your oven to 375 degrees Fahrenheit.
In a small bowl, combine the crushed Oreos and coconut oil until wet and sandy.
Press the wet Oreo mixture into the bottom of a standard size pie dish and set aside.
In a medium sized mixing bowl, combine the butter, milk, chocolate chips, and vanilla. Microwave the ingredients on 30 second intervals until the chocolate chips and butter are completely melted.
Whisk in the eggs until they are fully incorporated into the batter.
Gently fold in the flour and one cup of the powdered sugar until the batter is smooth and uniform.
Pour the batter over the Oreo crust and bake for 30 minutes, or until cracked on top.
Allow the brownie layer to cool for an hour in the fridge.
Once the brownie layer has cooled, whip the heavy cream into stiff peaks with the remaining powdered sugar. Spread the whipped cream over the top of the brownie layer.
Sprinkle with chocolate chips and pecans, serve and enjoy!