Spinach and feta quiche fails in about five predictable ways, and every one of them has a fix. Water from the spinach, a raw crust, an over-baked custard, a set you misjudge, a slice that collapses on the server.
I have baked this in the same 9-inch dish for years and got it wrong plenty of times early on, usually by trusting the timer over the wobble. These are the questions I actually get asked, in the order they come up.
Prep: 25 mins Cook: 55 mins Serves: 8
Why is my quiche watery?
Almost always the spinach, occasionally the oven.
Ten ounces of fresh spinach is about 90% water, and wilting it is only step one. After it collapses, keep stirring on medium until you can drag a spoon across the pan and no liquid runs back into the track. Roughly 5 to 7 minutes after the last handful goes in, which is longer than people expect. Frozen spinach: thaw, then wring it in a tea towel until you have squeezed out a genuinely surprising amount, easily half a cup from a standard block.
The second cause is heat. Egg proteins coagulate gently up to around 80C; past that they contract hard and squeeze out the water they were holding, which pools under the slice. This recipe used to bake at 375F, hot enough to push the edges past that point before the middle is done. I bake the custard at 350F now and it weeps far less.
Do I actually have to blind-bake?
Yes, for this filling. The custard is wet and sits in the case for the best part of an hour, and raw pastry under wet custard steams instead of crisping.
Line the chilled case with parchment, fill to the brim with baking beans, bake at 400F for 15 minutes. Lift the beans out and give it 6 to 8 minutes more, until the base is dry and matte rather than shiny. Blind-baking at 375F, as the method here used to say, leaves the pastry pale and half set.
Chill the lined tin 30 minutes first. Cold fat holds its shape; warm pastry is what slumps down the sides. The ratio and the resting behind that are set out in my basic shortcrust method.
What’s the right custard ratio per egg?
The classic French ratio is 1 large egg to 1/2 cup of dairy, giving a soft custard that quivers. This recipe runs 4 eggs to 1 cup of cream, a quarter cup per egg, and that is deliberately firmer.
The reason is the spinach. A filling carrying that much cooked vegetable needs more structure to hold a clean slice, and the softer ratio goes sloppy. If you want the silkier version, use 3 eggs plus 1 extra yolk to 1 1/4 cups of cream and add 5 minutes to the bake; the yolk brings richness without much setting power.
Whisk gently either way.
Ingredients
- 1 pre-made or homemade pie crust — 9-inch shortcrust, chilled
- 1 tablespoon olive oil
- 1 small onion, finely chopped
- 2 cloves garlic, minced
- 10 oz fresh spinach — or 1 cup thawed frozen, squeezed hard
- 4 large eggs
- 1 cup heavy cream — half-and-half sets softer
- 1 cup crumbled feta — block in brine, not the tubs
- 1/4 teaspoon ground nutmeg — freshly grated if possible
- 1/2 teaspoon salt — the feta is already salty
- 1/2 teaspoon black pepper
- 2 tablespoons chopped fresh dill — optional
Instructions
- Roll the pastry into a 9-inch dish, trim, prick the base, chill 30 minutes. Heat the oven to 400F.
- Line with parchment, fill with baking beans, blind bake 15 minutes. Remove beans, bake 6 to 8 minutes more until the base is dry and matte. Drop the oven to 350F.
- Heat the oil over medium. Cook the onion about 4 minutes until soft, then the garlic for one minute.
- Add the spinach a handful at a time. Once wilted, keep stirring 5 to 7 minutes until the pan is dry. Cool.
- Whisk eggs, cream, nutmeg, salt and pepper gently, just until uniform.
- Spread the cooled spinach over the base, then scatter the feta and dill.
- Pour the custard in slowly. Stop about a quarter inch below the pastry rim.
- Bake at 350F for 40 to 45 minutes. Rest 15 minutes before cutting.
How do I stop a soggy bottom?
Three layers of defence, and I use all of them. Blind-bake properly, as above. Then seal the hot case: brush the inside with a tablespoon of beaten egg the moment it comes out and slide it back in for 2 minutes, which sets a thin waterproof skin between pastry and custard. Then bake on a preheated metal sheet on the lowest shelf, so the base gets direct heat rather than warm air.
Glass and ceramic dishes look nice and conduct heat badly. If your bases are always pale, a plain metal tin fixes more than any technique will.
How do I know when it’s set?
Push the side of the dish. The outer two inches should be firm and the centre, a circle about the size of a plum, should move as one soft mass. If it ripples like liquid, another 5 minutes. If nothing moves at all, it is already slightly overdone.
A thermometer removes the guesswork: 170 to 175F in the middle, and pull it there, because carryover takes it a few degrees higher as it rests. Rest 15 minutes minimum. Cut it hot and the first slice slumps onto the plate.
Why did my quiche puff up and then collapse?
Air whisked into the custard, or too much heat, usually both. Trapped air expands, the custard rises like a souffle, then the bubbles escape as it cools and the top sinks and cracks.
Use a fork rather than a balloon whisk, stop the moment yolks and whites combine, and let the mixture stand 5 minutes so foam rises and can be skimmed. A steady 350F does the rest. A quiche that never puffs never falls.
Does the feta need anything done to it first?
Drain it, pat it dry, and taste it before you salt anything. Brined feta ranges from mild Danish-style to sheep’s milk Greek that is genuinely salty, and the half teaspoon in the custard assumes the milder end. If yours is sharp, drop to a quarter teaspoon.
Buy the block in brine, not the pre-crumbled tubs, which are dusted with anti-caking starch that goes chalky in a baked custard. Crumble to thumbnail-sized pieces; dust-fine feta dissolves and you lose the pockets of sharpness that make the thing work. Whatever is left of the block goes into a breakfast wrap with sun-dried tomatoes the next morning.
Can I make it crustless?
The easiest change here. Butter a 9-inch dish well, add two tablespoons of grated parmesan and roll it round to coat the sides, then fill and bake at 350F for 35 to 40 minutes. The parmesan gives the custard something to grip and a savoury edge where the crust used to be.
With no pastry to absorb stray moisture the spinach has to be drier still, so squeeze harder than you think. At that point you are close to a baked vegetable frittata, which is worth knowing as its own dish rather than as a compromise.
Can I freeze it?
Baked, yes. Cool completely, wrap the quiche or individual slices in a double layer of foil, freeze up to 2 months. Reheat from frozen at 325F for 25 to 30 minutes, loosely covered for the first 20. The texture comes back about 90% of the way: pastry slightly softer, custard very slightly grainier. Nobody has ever commented on it unprompted.
Do not freeze it unbaked. Raw custard separates on thawing and bakes out watery.
Cold from the fridge the next day is honestly when it is best, with a plate of chopped Greek salad beside it, since the olives and cucumber cut the cream. If it is the spinach and feta pairing you want rather than the pastry, it runs through eggs Florentine at breakfast and spinach and ricotta stuffed shells at dinner. For the pastry itself, the blind-baking notes in my apple pie go further on keeping a bottom crust crisp under a wet filling.