Line a 10-inch pie pan with:
Bake as directed in About Crumb Crusts and let cool completely. Pour into a small cup:
Sprinkle over the top and let stand for 5 minutes:
Place in a medium bowl:
Whisk together thoroughly in a medium heavy saucepan:
Gradually whisk in:
Vigorously whisk in until no yellow streaks remain:
Stirring constantly, bring to a simmer over medium heat and cook for 30 seconds. Immediately stir 1 cup of the mixture into the chocolate. Add the softened gelatin to the mixture remaining in the pan and stir for 30 seconds to dissolve the gelatin. Vigorously stir the chocolate mixture until smooth (if the chocolate fails to melt completely, set the bottom of the bowl in very hot water). Spread the chocolate mixture evenly over the bottom of the pie crust and refrigerate. Stir into the custard still in the pan:
Beat in a large bowl until foamy:
Add:
Continue to beat until soft peaks form, then gradually beat in:
Increase the speed to high and beat until the peaks are stiff and glossy. Gently fold the egg whites into the custard mixture. Spoon the filling over the chocolate mixture in the pie crust. Refrigerate for at least 3 hours, or up to 1 day before serving.
Top with:
If you wish, sprinkle with:
The pie can be refrigerated for up to 5 days.