Crank it to 400°F (200°C). Yes, that’s hot. Your pie needs a sudden, loving blast of heat.
Do not thaw the pie first. Thawing turns the crust into a gummy mess. Trust the process.
Place the frozen pie on a baking sheet lined with foil. That sheet catches drips. It also protects your oven from an apple lava spill.
The Brush of Glory
Here comes the fun part: egg wash. Beat one egg with a splash of milk. Brush it on the frozen crust.
This creates a shiny, golden armor. It’s like giving your pie a tiny, edible tan. Don’t skip it.
Sprinkle raw sugar on top. Turbinado sugar is best. It crunches like happy gravel.