A quiche that looks done around the edges but stays loose or liquid in the center is a common problem — and it usually comes down to heat, ratios, or pan depth.
The good news? This is easy to fix once you know what caused it.
What It Looks Like
- Edges are firm and sliceable
- Center jiggles excessively or pours when cut
- Bottom crust may be fully baked while the center is underdone
Why It Happens
Oven temperature too low
Quiche needs steady, moderate heat to set the custard evenly. If the oven runs cool, the edges cook long before the center catches up.
Pan is too deep for the baking time
A deeper dish requires more time — and sometimes a lower temperature — for heat to reach the center.
Too much liquid in the custard
Extra dairy or watery fillings can overwhelm the eggs’ ability to set.
Removed from the oven too early
Quiche should still wobble slightly, but it shouldn’t look liquid in the middle.
How to Fix It
- Verify your oven temperature with an oven thermometer
- Match your egg-to-dairy ratio to your pan size
- Use visual cues, not just time, to judge doneness
- Allow a 10–15 minute rest after baking so carryover heat can finish the center
→ Helpful guide: How to Make the Perfect Quiche Custard Base
→ Also read: Baking Pans for Baking Quiche
Can You Save an Underset Quiche?
Yes. Cover loosely with foil and return it to a 325–350°F oven for 10–15 minutes, checking frequently.
→ Back to: Quiche Troubleshooting Guide