-
In a heatproof bowl, melt the butter in the microwave.
-
In a blender, crush the Petit-Beurre cookies. Add the crushed cookies to the melted butter, mix well to combine.
-
Press the crust into an 8" pie pan, make sure the sides of the pan are covered with the crusts. Place crust in the freezer for at least 30 minutes.
-
Place the chocolate, heavy cream and butter in a heatproof bowl. Place in the microwave and melt in 30 sec intervals, stirring in between, until chocolate is melted and everything is combined. Make sure you don't over heat the chocolate. Pour the mixture into chilled crust.
-
Top with chopped walnuts and chill in the refrigerator for at least 2 hours.