This site uses only a few technical cookies necessary for its operation. By continuing to browse, you accept their use.
To find out more...
To find out more...
Onion fondue
Onion fondue is a delicious classic of French cuisine: finely-sliced onions, cooked long and slow until they are melting and caramelized.
This can be used in many other recipes.
This can be used in many other recipes.
152 K 4/5 (44 reviews)
50 min.
Easy
1 kg
5 IngredientsLast modified on: March 25th 2020
For 1 kg, you will need:
8 ½ cups 
6 tablespoons 
cup + 3 tablespoons 
4 
4 sprigs Change these quantities to make:
Change measures:
Times for this recipe
Preparation: 8 min.
Cooking: 45 min.
All in all: 50 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 1 - 7 min.
Stage 2 - 2 min.
Stage 3 - 1 min.
Add the sliced onions, mix well, but do not salt.
Turn the heat down to its lowest and leave to cook gently uncovered, stirring every 5 minutes or so.
Turn the heat down to its lowest and leave to cook gently uncovered, stirring every 5 minutes or so.
Stage 4 - 40 min.
Each time you stir, remember to scrape the bottom of the pan to mix in the cooking juices that the onions will create, so that gradually...
Stage 5
...they will take on the desired colour and consistency.
At about halfway, you can remove and discard the thyme and bayleaf.
At about halfway, you can remove and discard the thyme and bayleaf.
Stage 6
Once the onions have reached this colour (I like them really well caramelized), take off the heat, salt and pepper, then check the seasoning.
Stage 7
Your onion fondue is ready for use in any recipe you like.
Remarks
You will notice how the long cooking really brings out the onions' slightly sweet flavour, so do salt quite generously at the end of cooking.
It is important not to use a non-stick pan, as a conventional metal pan helps the onions to stick and create the cooking juices. These should be scraped off the bottom frequently and mixed in.
You can use clarified butter instead of the mix of oil + butter, or just normal butter, but take care not to let it burn.
It is important not to use a non-stick pan, as a conventional metal pan helps the onions to stick and create the cooking juices. These should be scraped off the bottom frequently and mixed in.
You can use clarified butter instead of the mix of oil + butter, or just normal butter, but take care not to let it burn.
Keeping: Several days in the fridge, covered with plastic film.
Source: Home made.
Nutritional information
| Proteins (gr) | Carbohydrates (gr) | Fats (gr) | Energy value (in k-calories) | Energy value (in k-joules) | |
|---|---|---|---|---|---|
| Whole recipe | 30 RDI=10 % | 180 RDI=20 % | 120 RDI=20 % | 1,930 RDI=100 % | 8,100 RDI: 100 % |
| Per 100 g | 1 RDI=0 % | 8 RDI=1 % | 5 RDI=1 % | 90 RDI=5 % | 380 RDI: 5 % |
How much will it cost?
- For 1 kg : 6.00 €
Change currency: 
Note: Be careful, these prices are only an estimate, you can consult the table of prices by ingredients used for this estimate.
Some other recipes using this recipeSee them all 8
Loaf for "les filles'"
This loaf for "the girls" in three colours is made by putting together three doughs, each with a different flavour: tomato for the red, pesto with olives for the green and onion for the white. The three different doughs fuse as they rise together in the tin before cooking, to produce an unusual...
82 K4.6 4 hours 6 min.
Eggs meurette
Eggs meurette or "œufs à la bourguignonne" is a great classic of French cooking, and of Burgundy in particular. It consists of poached eggs on a bed of fondue onions and bacon, served on a slice of fried bread. This is topped with a tasty reduced red wine sauce.
207 K 14.1 1 hour 15 min.
Montlebon toast
Not just plain old cheese on toast, these slices are loaded with delicious toppings: bechamel sauce, caramelized onions and sticks of morteau sausage. The slices are finished with grated Comté, then browned in the oven.
52 K5 30 min.
Stuffed Mushrooms
In this recipe, the mushrooms are stuffed with caramelized onions, topped with cheese and cooked in the oven. As mushrooms tend to give off a lot of liquid, especially when very fresh, the cooking is done in two stages.
68 K4.1 60 min.
Eggs in tomato shells
This is a novel way of cooking eggs: in tomato "shells" or egg-cups! For extra flavour, we'll put a spoonful of caramelized onions in the tomato first.
63 K3.9 1 hour 3 min.
This recipe uses (among others)
Onion
Like these other recipes: Green beans with tomato and cheddar cheese, Vegetable stock, Baker's tuna and mushroom tart, Zucchini and potato scarpaccia, Rabbit civet, ... See them all 147
Butter
Like these other recipes: Potato and broccoli gratin, Warm haricot bean salad, Tyrolean apple crumble, Langoustine sabayon tart, Kugelhof for Nanou, ... See them all 476
Oil
Like these other recipes: Larded pork tenderloin, Salmon marinated like herring, Roast beef "like they do it in Santa Fe", Duo of slow-cooked pork, Melting Epoisses on toast , ... See them all 96
Bayleaf
Like these other recipes: How to slow cook meat, Feta and spinach brik pie, Two-stage beef chuck , Little vegetable omelettes, Baker's chicken and potato tart, ... See them all 65
Other recipes you may also like
Vanilla sugar
Almost essential in patisserie, you can find it in expensive little sachets of about 10g. It's necessary to distinguish between the vanilla sugar which really contains vanilla, and vanillin sugar, purely chemical which has never seen a vanilla pod. Here is how to quickly make a whole jar full of your own vanilla sugar. August 12th 2018428 K 15 30 min.
Almond cream
Light and delicious, it is used in a lot of desserts like tarts, cakes and pies (epiphany galette). August 31th 2025468 K 25 35 min.
Chocolate sauce
This rich smooth chocolate sauce, with its full flavour, is one of the indispensable ingredients of profiteroles, but it can be used with many others desserts. February 21th 2011314 K 24 35 min.
Fruit coulis (fruit purée)
Contrary to what people usually think, coulis is not just a simple fruit purée with sugar. Of course, this is the general principle, but it's possible to make something much better and more refined. This recipe is for a strawberry coulis (see below for other fruits): how to make it, but also how freeze it. October 20th 2012786 K 43 25 min.
Small cheese and bacon rolls
These small aperitif snacks can be prepared in advance and heated at the last minute, or served cold. September 7th 2018365 K5 1 hour 25 min.
News list of cooking-ez.com
Sign up to receive the latest recipes (next batch due to be sent on 2025-09-07)
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.