Instructions: Prepare the Crust: In a medium bowl, combine the flour and salt.Add the cold, cubed butter and use a pastry cutter or fork to cut the butter into the flour mixture until it resembles coarse crumbs.
Prepare the Filling: Stir in the chopped chocolate, butter, and vanilla extract until the chocolate and butter are melted and the mixture is smooth. Allow to cool slightly.
Assemble the Pie: Pour the chocolate filling into the cooled pie crust, spreading it evenly.
Chill: Refrigerate the pie for at least 4 hours, or until the filling is fully set.
Whip Cream: In a large bowl, beat the heavy cream, powdered sugar, and vanilla extract until stiff peaks form.
Serving: Serve the blackberry pie warm or at room temperature, optionally with a scoop of vanilla ice cream or a dollop of whipped cream. Enjoy!