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Onion Tart

 

 

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onion tart

caramelised onions in gooey cheese and crisp pastry
0 from 0 votes
Prep Time: 10 mins
Cook Time: 45 mins
caramelising the onions: 30 mins
Total Time: 1 hr 25 mins
Course: Dinner, Packed Lunch, Picnic
Cuisine: English
Keyword: budget meals, cheap family recipes
Dietary Requirements: Freezes Well, Vegetarian
Servings: 4 servings
Cost per portion 54p
Calories: 736.19kcal
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Ingredients

For Filling

  • 80 g Cheddar cheese grated
  • 15 g grana padano finely grated
  • 2 eggs
  • 700 g onion (trimmed and peeled weight), chopped into pieces no larger than an inch
  • 110 ml whole milk
  • 40 ml vegetable oil

For pastry

  • 40 ml vegetable oil
  • 150 g self-raising flour
  • 2 tsps mustard powder
  • 3 tbsps cold water

Serve with

  • 320 g peas
  • 1 kg potatoes

Instructions

Pastry

  • Make the pastry by sifting the flour and mustard powder into a mixing bowl, then stir in 40 mls of oil.
  • Add cold water, up to 40 mls until you have a dough that forms a ball and leaves the bowl clean. Just stir the mix with a spoon, don't try to rub it in
  • Leave to rest at room temperature for half an hour.

Filling

  • Meanwhile, prep the filling. Put the oil in a heavy-based saucepan, then add the onions, stir to get them well coated in the oil, and cook them (uncovered) over a medium heat for about half an hour until they have reduced and turned a deep brown (caramelised).
  • They may take as long as 45 minutes. Keep an eye on them towards the end as they may start to stick. If they do, add a splash of water and stir
  • Click here to start a 30 minute timer
  • If you cook them for less long, or like them less caramelised, you'll need to cook 50-100g less onions, as they will have reduced less in size.
  • Roll out the pastry to the thickness of a 20p piece to line the tart tin, prick the base with a fork, place it on the pre-heated baking sheet, and bake in the centre of oven for up to 15 minutes.
  • Check at 5 minutes and if the pastry seems to have puffed a little and turned a strawlike colour (ie barely browned), remove earlier than the 15 mins.
  • Click here to start a 5 minute timer
  • Then spread the onions all over the base of the tart, whisk the beaten eggs together with the milk and some seasoning, and pour this mixture over the onions.
  • Finally sprinkle both cheeses over the top, return the tart to the oven and bake for 30 minutes or until the filling is puffy and golden brown.
  • Click here to start a 30 minute timer

Serve With

  • Serve with 320g peas (80g per person).
  • and 1kg potatoes made into potato wedges, or peel, boil and mash them

Notes

 
 
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Nutrition

Nutrition Facts
onion tart
Amount Per Serving
Calories 736.19 Calories from Fat 291
% Daily Value*
Fat 32.31g50%
Saturated Fat 22.64g142%
Cholesterol 108.14mg36%
Sodium 264.22mg11%
Potassium 1606.96mg46%
Carbohydrates 88.34g29%
Fiber 14.33g60%
Sugar 13.75g15%
Protein 27.39g55%
Vitamin A 1005.04IU20%
Vitamin C 73.45mg89%
Calcium 375.53mg38%
Iron 10.59mg59%
* Percent Daily Values are based on a 2000 calorie diet.
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