Ultimate onion tart

Ultimate onion tart

  • 1
  • 2
  • 3
  • 4
  • 5
(28 ratings)

Prep: 15 mins Cook: 1 hr

More effort

Serves 6
This simple quiche is a classic veggie favourite

Nutrition and extra info

  • Vegetarian

Nutrition: per serving

  • kcal623
  • fat50g
  • saturates26g
  • carbs35g
  • sugars0g
  • fibre3g
  • protein10g
  • salt0.59g


  • 300g shortcrust pastry, thawed if frozen
  • 25g butter



    Butter is a dairy product made from separating whole milk or cream into fat and…

  • 2 tbsp olive oil
    olive oil

    Olive oil

    ol-iv oyl

    Probably the most widely-used oil in cooking, olive oil is pressed from fresh olives. It's…

  • 900g onion, halved and thinly sliced



    Onions are endlessly versatile and an essential ingredient in countless recipes. Native to Asia…

  • 2 medium eggs



    The ultimate convenience food, eggs are powerhouses of nutrition packed with protein and a…

  • 300ml double cream
  • 40g vegetarian parmesan -style cheese, grated



    Parmesan is a straw-coloured hard cheese with a natural yellow rind and rich, fruity flavour. It…


  1. Heat oven to 190C/fan 170C/gas 5. Roll out the pastry on a lightly floured surface and use to line a deep 23cm fluted flan tin. Line with baking paper and fill with baking beans. Bake blind for 15 mins.

  2. Heat the butter and oil in a large frying pan, then gently fry the onions, covered, for about 30 mins until completely softened, but still pale in colour.

  3. Beat the eggs and cream together in a bowl, then add the cheese and some seasoning. Stir in the onions, then spoon the mixture into the flan case. Bake for 25-30 mins until lightly set and browned.

You may also like

Comments, questions and tips

Sign in or create your My Good Food account to join the discussion.
14th Apr, 2020
Easy to follow recipe. I substituted cheddar for Parmesan and added some grated nutmeg. Next time I would also add some fresh, finely chopped thyme leaves for colour and flavour.
Olive Hoil
25th Apr, 2017
Be prepared for arm ache cutting the onions but it's well worth it. Best quiche recipe ever.
12th Dec, 2015
Vegetarian Parmesan cheese? What is a non vegetarian cheese?
24th Feb, 2016
Usually Parmesan cheese isn't vegetarian due to the rennet that is extracted from a calf's stomach. Vegetarian Parmesan is made with microbial rennet. You can use either of those if you don't care.
22nd Jun, 2015
I found I could cut down all the timings and the result was delicious (even without the cheese which I left out because it needed to be dairy free and hence I swapped the cream for a dairy free version).
2nd Oct, 2014
This tart is divine, I substituted the cream for half milk, half (lightest) cream cheese. Will definitely be making this again, it was so easy to make too!
24th Apr, 2014
This was great and so simple! I didn't have any double cream so but I had mascapone and cream cheese which I loosened with a little milk, I also used a little nutmeg, perfect for lunchboxes! I love the comment below about putting some blue cheese with this, which I will try next time.
28th Dec, 2013
Made this as individual tartlets. Delicious!
29th May, 2013
Absolutely lovely - made it to take to a friends birthday garden party. Great reviews. Add plenty of Salt & Pepper! Will definitely make again......soon!
11th May, 2013
absolutely delicious! substituted double cream for single to cut the calories. cut it into portions and froze, defrosted fine.


28th Dec, 2019
Ok so best not to freeze but could this be made in advance and reheated? If so how long before? Or could you just blind bake the pastry
lulu_grimes's picture
30th Dec, 2019
Hello, You could make this ahead, it will keep for a couple of days in the fridge and you could rewarm it to serve. You could also blind bake the case and stir it/freeze it. I hope this helps.
27th Nov, 2017
Hi is this tart Frizzer able ??
goodfoodteam's picture
27th Nov, 2017
Thanks for your question. We think this is better if not frozen as the texture will become too firm if frozen and reheated.
17th Sep, 2015
How many medium-sized onions did people use for this, please?
Be the first to suggest a tip for this recipe...Got your own twist on this recipe? Or do you have suggestions for possible swaps and additions? We’d love to hear your ideas.
Want to receive regular food and recipe web notifications from us?