10 minutes at 170 degrees Celsius.170 degrees Celsius is the right temperature for pumpkin pie making, which allows the surface of the pumpkin pie to quickly form a golden brown crunchy crust while the interior cooks through.10 minutes is the right time for pumpkin pie making, which allows the surface of the pumpkin pie to form a crunchy crust and the interior cooks through while avoiding overbrowning that can cause the pumpkin pie to harden.