The name is a lie — it's a cake, not a pie, and the session opens by explaining why, which is a nice bit of history rather than filler. It's built from an old Fannie Farmer recipe and there are three separate components: sponge, pastry cream, chocolate glaze. That sounds like a lot for one session and it isn't, because the cream sets while the sponge bakes and the glaze takes four minutes at the end.
Priya