Caramelized Onions

Caramelized Onions
Caramelized onions are sliced thinly then cooked for a long time until completely brown.

They can be used in lots of recipes. For example, they can transform a simple omelette into a divine treat.
39,4253.3/5 for 7 ratings
Grade this recipe:

Last modified on: September 23th 2015

For 150 g, you will need:

Change those ingredients for: 50 g 75 g 150 g 300 g 450 g

How long does it take?

Time required for this recipe:
PreparationCookingStart to finish
9 min.20 min.29 min.
Keeping: Several days in the fridge, in a closed box.
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 - 3 min.
Caramelized Onions : Photo of step #1
Peel then rinse 500 g onion and cut in half lengthways.

Stage 2 - 5 min.
Caramelized Onions : Photo of step #2
Slice the onions thinly. If you have one, a mandolin will make this job a lot quicker.

This seems like a lot of onions to begin with, but they will reduce by 2/3 when cooked.

Stage 3 - 1 min.
Caramelized Onions : Photo of step #3
Pour 3 tablespoons oil into a large pan on medium heat.

When hot, add the onions and mix well.

Stage 4 - 20 min.
Caramelized Onions : Photo of step #4
Leave to cook gently until caramelized, stirring from time to time.

Stage 5
Caramelized Onions : Photo of step #5
The onions will gradually brown.

Stage 6
Caramelized Onions : Photo of step #6
Stop when they are browned to your liking.

Salt and pepper to taste...


Once cooked, the onions will need quite a generous amount of salt as the process tends to make them rather sweet.

You can balance this sweetness, which can be a bit excessive at times, by pouring half a glass of dry white wine or 3 tablespoonsful of vinegar into the pan 5 minutes before the end of cooking.

Nutritional information

Whole recipe
Energetic valueProteins CarbohydratesFats
610 Kcal or 2,554 Kj7 gr45 gr45 gr
31 %3 %4 %7 %
Per 100 g
Energetic valueProteins CarbohydratesFats
112 Kcal or 469 Kj1 gr8 gr8 gr
6 %<1 %1 %1 %
% are calculated relative to a Recommended Dietary Intake or RDI of 2000 k-calories or 8400 k-joules by day for a woman (change to a man).

How much will it cost?

Note : These prices are only approximate

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Home made.

More recipes?

This recipe uses (among others)
OnionOnion: You can get more informations, or check-out other recipes which use it, for example: Spinach fritters, Stuffed tomatoes and courgettes, Rabbit civet "à la normande", Vegetable stock, Crispy spinach rolls, ... All
OilOil: You can get more informations, or check-out other recipes which use it, for example: Cocotte eggs with Comté, Steak burger topped with egg, Crab Cakes, Eggs Arsène, Pork chops in the oven, ... All
SaltSalt: You can get more informations, or check-out other recipes which use it, for example: Sea bass with coriander cream en papillote, Sliced chicken with mushrooms and broccoli, Special small breads, Tomato foccacia, Roquefort sauce, ... All
PepperPepper: You can get more informations, or check-out other recipes which use it, for example: Lobster Thermidor, Small cheese and bacon rolls , Mussels marinière, Penne with purple artichokes, Pasta with mushrooms, ... All

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