A pie can be raw in the middle for five different reasons, and they are worth separating
because the fixes have nothing in common. The one people never suspect is first.
The dish
| Tin | How the base bakes |
|---|---|
| Thin dark metal | Fast — best for a crisp base |
| Metal, removable bottom | Good |
| Ceramic | Slow |
| Glass | Slowest |
Ceramic and glass look better on the table and bake worse. If you use them,
put the dish on a preheated baking tray or stone —
that alone often solves a soggy base without changing anything else.
The oven temperature
High heat browns the top long before the centre is done, and the pie looks
finished. Lower the temperature and extend the time; if the top is colouring too fast,
cover it loosely with foil and keep going.
The filling
Fruit releases a great deal of liquid, and liquid boils rather than bakes —
keeping the pastry beneath it below the temperature it needs.
Toss fruit with a tablespoon of cornflour or semolina per 500 g,
sprinkle ground nuts or breadcrumbs on the base before the filling, or cook very juicy fruit
down first.
The missing blind bake
For custard, quiche and single-crust pies the base needs a head start:
15–20 minutes with baking beans, then 5–10 uncovered to dry it,
before any filling goes in. Brushing the part-baked base with egg white seals it.
The shelf
Most domestic ovens are hotter at the top. A pie in the middle or upper third browns the
lid and starves the base — move it down.
How to tell it is actually done
- The filling bubbles in the centre, not just at the edges.
- The base is golden — lift the pie and look, if the tin allows.
- For custard fillings a slight wobble in the middle is correct; it sets as it cools.
Related:
Why bread is gummy inside ·
Why cake cracks on top ·
Why sponge cake collapses ·
Open Cherry Pie under a Caramel Crust