Onion Quiche

Mild and sweet, Onion Quiche is a vegetarian lunch or supper dish you can eat hot or cold.

Onion Quiche

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I avoided Onion Quiche for years because I don’t like raw onions (these aren’t) and I don’t like a strong onion flavour (this isn’t). When I finally made this for a vegetarian friend, I realised what I had been missing and now Onion Quiche is one of my favourites.

The onion taste is mild and slightly sweet – it’s something to do with the way they’re cooked – gently fried first and then baked in the quiche filling.

What can you add to Onion Quiche?

• Cheese – 150g grated strong Cheddar cheese in the bottom of the cooked pastry case, before you add the onions, will add some protein and that cheese & onion flavour
• Bacon – 150g cooked chopped streaky bacon is another option.

Making Onion Quiche easier and quicker

Pre-cooked pastry case

1. If you are organised and prefer to make your own pastry, you can make and blind-cook pastry cases that you freeze for later. On occasions, I have done this, although I prefer to batch cook the finished quiches so that I have some ready-to-eat meals in the freezer.
2. Or you could buy a shortcrust pastry case. This is a great option if you’re short of time or not confident about making pastry (although if this is you take a look at my recipe and method for Pâte brisée, which involves not rolling out the pastry – the bit I hate).
3. The third option is to buy ready-made pastry, in a block or ready-rolled. If you’re using my method of making the pastry case you won’t be rolling it out, so buy a block.

Frozen sliced onions

Again you have the option of buying frozen, sliced onions or freezing them yourself – details are here. You will need to cook the onions a little longer – especially if you start from frozen!

Helpful Tools

• Microplane Spice Mill – I’m a big fan of freshly grated nutmeg and I use a lot of it, especially in quiches. I’ve used a small nutmeg grater for years, but I recently upgraded to a Microplane spice mill. What a difference it makes!
• Splash screen – Reduces fat splashes when you’re frying the onions for the sauce.

If you like this…

Why don’t you try:

• Tuna and Tomato Quiche
• Salmon and Prawn Quiche
• Pâte brisée – pastry for quiches

Print Recipe

Onion Quiche

A simple, vegetarian quiche, especially good on cold days.

Prep Time15 mins

Cook Time30 mins

Total Time45 mins

Course: Supper

Cuisine: European

Servings: 5 servings

Author: [email protected] Cooks

Ingredients

For the pastry case:

• 1 recipe Pâte Brisée or 1 ready-made 22-24cm shortcrust pastry case

For the Onion Quiche filling:

• 500 g onions
• 20 g butter
• Salt
• Freshly ground pepper
• Grated nutmeg
• 3 large eggs
• 250 ml milk

Equipment

24cm/9-inch china flan dish

Instructions

Preparation:

• Set the oven to 200°C fan, gas mark 7
• Peel the onions and slice finely - use the slicing disc of a food processor if you have it.

For the pastry case:

• Press the pastry into the flan dish with your fingers or use a pre-cooked case
• Blind-cook the pastry case for 10 minutes.

  I.e. put a piece of baking parchment on the pastry and cover with baking beans (to stop the pastry rising)
• Remove the baking parchment and beans and cook the pastry case for a further 10 minutes.

For the Onion Quiche:

• Heat the butter in a large frying pan on MEDIUM heat
• Add the onions to the pan and turn them to coat in butter
• Turn down the heat to LOW and cook the onions gently for about 5 minutes until they are soft, but not brown
• Spoon the onion mixture into the flan case. Season generously with salt and pepper
• Grate some nutmeg over (or sprinkle 2-3ml if pre-grated)
• Blend the eggs and milk, in a processor or with a mixer, and pour the mixture over the onions
• Bake the quiche for 25 minutes, then turn the oven down to 170°C fan, gas mark 5 until golden brown on top.