Roll out your pie crust, fit it into a 9-inch pie dish, crimp the edges, and refrigerate for 30–45 minutes until firm. Cold dough shrinks less.
Preheat the oven to 425°F, and place a large cookie sheet over the bottom oven rack.
Use a fork to prick the bottom and sides to help steam escape.
Press a sheet of parchment on top of the crust.
Fill the lined crust with pie weights, dried beans, or rice, all the way to the top.
Place the pie over the cookie sheet, and bake for 15–18 minutes, until the edges look set and lightly golden.
Remove rom the oven and let chill for 10-15 minutes. Carefully lift out the parchment or foil with the weights.
Brush the crust with the egg wash.
Return to the oven. Bake for another 10–12 minutes, until the bottom is dry and golden.
Cool completely before filling.