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.
This is a very classic version. The long, slow cooking is the secret to revealing its full flavour.
67 K 4.0/5 (35 reviews)
2 hours 30 min.
Easy
24 people
11 IngredientsLast modified on: December 30th 2019
For 24 people, you will need:
- 1
2 kgs 100 g onion - 2
150 g butter - 3
150 g flour - 4
600 ml dry white wine - 5
6 litres water - 6
6 chicken stock cubes - 7
12 slices bread - 8 120 g butter
- 9
240 g grated cheese - 10
salt - 11
pepper - Total weight: 10,020 grams
Change measures:
Times for this recipe
Preparation: 35 min.
Cooking: 1 hour 55 min.
All in all: 2 hours 30 min.
If you start now, at , you will finish around : ?.Change start time
To finish around 7pm, you'll need to have started before: .Change end time
Step by step recipe
Stage 2 - 3 min.
In a large saucepan or casserole, melt 150 g butter until it froths.
Stage 3 - 1 min.
When the butter is frothing well, add the chopped onions, salt and pepper. Mix well.
Stage 4 - 10 min.
Fry the onions on fairly high heat until lightly browned, stirring frequently to stop them burning.
Stage 5 - 2 min.
Sieve 150 g flour into the pan.
Stage 6 - 5 min.
Mix in and cook until starting to brown, stirring constantly.
Stage 7 - 1 min.
Pour in 600 ml dry white wine all at once.
Stage 8 - 3 min.
Stir until well mixed.
Leave to cook for 2 or 3 minutes while stirring.
Leave to cook for 2 or 3 minutes while stirring.
Stage 9 - 1 min.
Pour in the chicken stock, made by mixing 6 litres water (hot) with 6 chicken stock cubes.
Bring to the boil.
Bring to the boil.
Stage 10 - 1 hour 30 min.
When boiling, turn the heat down to its lowest, cover and leave to cook for 1 ½ to 2 hours.
Stage 11 - 5 min.
Meanwhile, butter 12 slices bread and top with grated cheese.
Press the cheese down gently to help it stick to the buttered bread.
Press the cheese down gently to help it stick to the buttered bread.
Stage 12 - 4 min.
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.
When the onion soup is cooked, check the seasoning.
Stage 14 - 3 min.
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 stage 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.
At stage 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.
Keeping: Several days in the fridge, covered with plastic film.
Source: Based on a recipe by Gaston Lenôtre.
Nutritional information
| Proteins (gr) | Carbohydrates (gr) | Fats (gr) | Energy value (in k-calories) | Energy value (in k-joules) | |
|---|---|---|---|---|---|
| Whole recipe | 950 RDI=370 % | 7,220 RDI=680 % | 410 RDI=60 % | 5,670 RDI=280 % | 23,740 RDI: 280 % |
| Per 100 g | 9 RDI=4 % | 70 RDI=7 % | 4 RDI=1 % | 60 RDI=3 % | 240 RDI: 3 % |
| Per person | 40 RDI=20 % | 300 RDI=30 % | 20 RDI=3 % | 240 RDI=10 % | 990 RDI: 10 % |
How much will it cost?
- For 24 people : 12.60 €
- Per person : 0.55 €
Change currency: 
Note: Be careful, these prices are only an estimate, you can consult the table of prices by ingredients used for this estimate.
This recipe uses (among others)
Water
Like these other recipes: Praline, Hazelnut and orange cake, Leavened bread, Rum babas, Citrus syrup, ... See them all 135
Onion
Like these other recipes: Breton Pie, Mushrooms on toast, French style, Polenta parmentier, Algerian brik rolls, Chorba, ... See them all 148
Dry white wine
Like these other recipes: Pea risotto "Mantecare", Potatoes with prawns, Rabbit with mustard, Artichoke hearts forestier , Polenta with spinach and soft-poached egg, ... See them all 68
Grated cheese
Like these other recipes: Salmon and Spinach Gratin, Chard and potato gratin, Algerian brik rolls, Vegetable clafoutis, Spinach parmentier, ... See them all 72
Other recipes you may also like
Sesame fried scampi
Scampi, coated with a sesame crust, fried quickly, and served with a herb salad.November 11th 2012301 K5 35 min.
Broad bean salad with Parmesan
A salad that combines crunchy almonds, tender broad beans, with the flavours of balsamic vinegar, parmesan and herbs.February 21th 2011275 K3.8 25 min.
Chocolate rolls (petits pains)
Here is a recipe for "real" chocolate petits pains, i.e. with a milk bread dough (not croissants dough) and with a stick of chocolate inside.October 30th 2021440 K4.6 5 hours 30 min.
Blackcurrant sorbet for Edith
If you love the taste of blackcurrants (like Edith), this sorbet is for you...October 13th 2010253 K4.9 25 min.
News list of cooking-ez.com
Sign up to receive the latest recipes (next batch due to be sent on 2025-05-18)
Note: We'll never share your e-mail address with anyone else.
Post a comment or question
Follow this recipe
If you are interested in this recipe, you can "follow" it, by entering your email address here. You will then receive a notification immediately each time the recipe is modified or a new comment is added. Please note that you will need to confirm this following.
Note: We'll never share your e-mail address with anyone else.
Alternatively: you can subscribe to the mailing list of cooling-ez.com , you will receive a e-mail for each new recipe published on the site.