In a small bowl combine dried cranberries and brandy or juice. Cover and chill for at least 1 hour. Drain and reserve 1 Tbsp of the brandy.
Preheat oven to 325°. Prepare pastry and line a 9 inch pie plate
In a medium bowl, whisk together butter, sugar, eggs and salt. Stir in walnuts, flour and chopped baking bars until just combined. Stir in drained cranberries and 1 tbsp of the reserved brandy mixture. Spoon into crust . Bake for 65 minutes, loosely covering the pie with foil for the last 30 minutes of baking.
Cool on rack.
Top with whipped cream.