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
500 g
5 IngredientsLast modified on: March 25th 2020
For 500 g, you will need:
1 kg 
3 tablespoons 
20 g 
2 
2 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 | 10 RDI=5 % | 90 RDI=8 % | 60 RDI=9 % | 970 RDI=50 % | 4,050 RDI: 50 % |
| Per 100 g | 1 RDI=0 % | 8 RDI=1 % | 5 RDI=1 % | 90 RDI=5 % | 380 RDI: 5 % |
How much will it cost?
- For 500 g : 3.00 €
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
Rosemary steamed fish
In this recipe the fish is cooked in steam perfumed with rosemary, which makes it tender and aromatic, served on a bed of onions fondue and finished with a dry white wine sauce.
345 K3.8 1 hour
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.
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.
Baked Camembert
In this recipe, very similar to the hot box, a Camembert cheese is baked in the oven, surrounded by baked potatoes set on a fondue of onions. A delicious and comforting winter dish.
11 K1 1 hour 25 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.
This recipe uses (among others)
Onion
Like these other recipes: Ratatouille, Raw beetroot salad, Leek fondue, Greek salad, Boeuf (beef) bourguignon, ... See them all 147
Butter
Like these other recipes: Paimpol salad, Nonettes, French Family Cake, Hollandaise sauce, French onion soup, ... See them all 476
Oil
Like these other recipes: Gratin Parmentier, No-pastry spinach and potato quiche, French toast "cordon bleu", Winegrowers' sausage casserole, Mont d'or in brioche, ... See them all 96
Bayleaf
Like these other recipes: Cajun pulled pork, Ratatouille, Two-stage beef chuck , Celeriac and mushroom gratin, Auvergne gratin, ... 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.