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French onion soup

French onion soup

This warming onion soup is an emblematic French dish, both in bistro cuisine and home cooking.

This is a very classic version. The long, slow cooking is the secret to revealing its full flavour.

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Last modified on: February 22th 2017

For 8 people, you will need:

How long does it take?

PreparationCookingStart to finish
34 min.1 hour 55 min.2 hours 29 min.
Preservation: Several days in the fridge, covered with plastic film.
At what time?
When will I finish if I start the recipe at a certain time?
When should I start for the recipe to be ready at a certain time?
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Step by step recipe

Stage 1
20 min.
French onion soup : Photo of step #1 Prepare 700 g onion and chop finely.
Stage 2
3 min.
French onion soup : Photo of step #2 In a large saucepan or casserole, melt 50 g butter until it froths.
Stage 3
1 min.
French onion soup : Photo of step #3 When the butter is frothing well, add the chopped onions, salt and pepper. Mix well.
Stage 4
10 min.
French onion soup : Photo of step #4 Fry the onions on fairly high heat until lightly browned, stirring frequently to stop them burning.
Stage 5
2 min.
French onion soup : Photo of step #5 Sieve 50 g flour into the pan.
Stage 6
5 min.
French onion soup : Photo of step #6 Mix in and cook until starting to brown, stirring constantly.
Stage 7
1 min.
French onion soup : Photo of step #7 Pour in 200 ml dry white wine all at once.
Stage 8
3 min.
French onion soup : Photo of step #8 Stir until well mixed.

Leave to cook for 2 or 3 minutes while stirring.
Stage 9
1 min.
French onion soup : Photo of step #9 Pour in the chicken stock, made by mixing 2 litres water (hot) with 2 chicken stock cubes.

Bring to the boil.
Stage 10
1 hour 30 min.
French onion soup : Photo of step #10 When boiling, turn the heat down to its lowest, cover and leave to cook for 1 ½ to 2 hours.
Stage 11
5 min.
French onion soup : Photo of step #11 Meanwhile, butter 4 slices bread and top with grated cheese.

Press the cheese down gently to help it stick to the buttered bread.
Stage 12
4 min.
French onion soup : Photo of step #12 Cut the bread into small squares and arrange these on a baking sheet. Brown under the grill (keep an eye on the colour).
Stage 13
1 min.
French onion soup : Photo of step #13 When the onion soup is cooked, check the seasoning.
Stage 14
3 min.
French onion soup : Photo of step #14 Serve piping hot in large bowls, topped with with the cheese croutons.

Remarks

Use either white or yellow onions, but preferably not red ones, as they are less suitable for the long slow cooking.

At Step 4 of the recipe, there are 2 conflicting schools of thought: some prefer the more traditional method of cooking the onions until they are dark brown, others (like me) only brown them lightly - it's a matter of taste, of course. I remember as a child staying with my grandmother Jeanne. She used to cook her onions until they were really dark and, back then, I loved that.

For the grated cheese, choose whatever you prefer that browns well, such as Comté, Gruyère or even Emmental.

Nutritional information

Whole recipe
CaloriesProteins CarbohydratesFats
9562262 gr1832 gr132 gr
478 %101 %173 %20 %
Per 100 g
CaloriesProteins CarbohydratesFats
2868 gr55 gr4 gr
14 %3 %5 %1 %
Per person
CaloriesProteins CarbohydratesFats
132 gr228 gr16 gr
60 %13 %22 %3 %
% are calculated relative to a Recommended Dietary Intake or RDI of 2000 k-calories by day for a woman (change to a man).

How much will it cost?

For 8 people : 4.17 €
Per person : 0.52 €

Note : These prices are only approximate.

Change currency:

Source: Based on a recipe by Gaston Lenôtre.
Grade this recipe :

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Grated cheeseGrated cheese: You can get more informations, or check-out other recipes which use it, for example: Spinach on toast with bechamel, Endive gratin with cancoillotte, Avengers' potatoes, Moussaka, Duck Parmentier, ... All

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