For the Crust: Prepare the pie dough as directed in the Basic recipe, adding the chocolate along with the flour. Roll dough out on lightly floured parchment paper to a 12-inch (30.5 cm) round and about 1/4 inch (6 mm) thick. Fit into prepared pie plate, trim edges, fold edges under and crimp decoratively. Line crust with aluminum foil and fill with pie weights. (You can read more about
Blind Baking). Bake on upper rack for about 10 to 12 minutes until crust is beginning to feel dry to the touch. Remove foil and weights and continue to bake for a few minutes until just beginning to color. Cool on rack as you proceed with recipe.