Preheat oven to 350 degrees F.
Roll the pie crust dough into a 12-inch circle on a lightly floured surface and fit it into a 9 inch pie pan. Crimp the edges of the crust and then chill in the fridge until ready to use.
Mix the chocolate chips and brandy in a bowl and set aside. In a small saucepan, bring the cream to a simmer over medium high heat, stirring often to avoid scalding. Remove cream from the heat, pour over the chocolate, and let the mixture sit for a minute. Whisk gently until smooth. Pour mixture into the chilled pie crust and spread evenly. Then set in the fridge until firm, at least 10 minutes.
In a small bowl mix the flour and salt. Set aside.
In a mixer beat the butter and sugar in a large bowl on medium speed for about a minute or until well blended. Beat in the vanilla and lightly beaten eggs.
Alternate mixing the flour mixture and the buttermilk into the egg mixture until smooth after each addition. Once well blended, pour the filling over the firm, chilled chocolate layer in the pie crust.
Bake in preheated oven a total of 1 hour to 1 hour and 10 minutes on the middle rack, until top of pie is gold brown and toothpick comes out clean. Check the pie at 50 minutes and cover with aluminum foil if the top is getting too brown.
Let pie cool for an hour before serving. If you like, top your pie with whipped cream, ice cream, and/or fresh berries.