• 1 ball of Classic Pie Dough, chilled
• ½ cup all-purpose flour
• ½ cup granulated sugar
• ½ cup firmly packed dark brown sugar
• 2 large eggs
• ¾ cup (1½ sticks) unsalted butter, softened, cut into cubes
• 1 tablespoon whiskey
• ¾ cup walnuts, toasted and chopped
• 1¼ cups (about 8 ounces) semisweet chocolate chips

Dust a work surface with a sprinkling of flour. Unwrap the ball of chilled dough and put it directly on the work surface. Roll out into a 12-inch round. Transfer the dough to a pie dish and carefully work it into the pie dish, folding any overhang under and crimping the edge as you go. Wrap and freeze the crust until firm, about 2 hours, or up to 3 months.

Preheat the oven to 350 degrees F.

In a medium bowl, whisk the flour and sugars together until combined. Set aside.

In the bowl of an electric mixer fitted with the whisk attachment, beat the eggs on high speed until foamy, about 3 minutes. Remove the whisk attachment and add the paddle attachment. With the mixer on low, gradually add the flour mixture. Turn the mixer to high and beat for 2 minutes. Scrape down the bowl and add the butter. Beat on high speed until the mixture is combined. Scrape down the bowl, add the whiskey, and beat the mixture on high speed for 1 minute.

Fold the walnuts and ¾ cup of the chocolate chips into the filling.

Pour the filling into the frozen pie shell and spread it out evenly. Top the filling with the remaining ½ cup chocolate chips.

Bake in the center of the oven for 25 minutes, then cover the edges of the crust loosely with aluminum foil and bake for another 25 minutes (this will prevent the crust from browning too quickly). Test the pie by sticking a knife in the center of the filling. If the knife comes out clean, the pie is done. If the knife comes out with clumps of filling sticking to it, bake for another 5 minutes and test again. Transfer to a wire rack and let cool before slicing.

The pie can be stored in the refrigerator, tightly covered, for up to 2 days.