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French Onion Soup

Published: Oct 13, 2016 · Modified: Oct 17, 2023 by Jacqueline Bellefontaine ·

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French onion soup being spooned into a bowl with recipe title and finished bowl of soup below.

Humble yet utterly irresistible French Onion Soup is simple to make. With its rich, savoury broth, tender caramelized onions, topped with a blanket of bubbling, golden-brown cheese toast , this comforting dish is warming and satisfying .

Oh yes and its also cheap to make so win, win!

french onion soup being ladled to bowls.

I don't know about you but,when the weather turns a little colder in the autumn it not long before I start to think about soup.

How to Make Perfect French Onion Soup

French onion soup is a really easy and cheap soup to make, but you do need to take a little time to cook the onions - slowly! Cook over a gently heat, so that the sugars in the onion caramalise without burning.

To be honest, I was a little impatient when making this soup to take the pictures, and should have given them a little longer until they were more golden.  Don't make the same mistake and  rush this step. Your time will be rewarded.  

If you cook them too fast the onions will burn and taste bitter.  Don't cook them enough and the soup will be pale and won't have a beautiful rich onion flavour.

That's  it! That's all you really need to know when making this soup. Apart from that, it is really simple.

French onion soup in a bowl with spoon

Ingredients

Ingredients

  •  Oil – I used extra virgin olive oil or cold pressed rapeseed oil
  • Butter – adds richness to the flavour combining iwth oil helps to prevent the butter from burning
  • Mild onions – sliced
  • Dark muscovado sugar – Adds richness, colour and a little sweetness to the soup
  • Plain flour – thickens the soup slightly
  • Beef or vegetable stock  – Use a good quality stock for the soup
  • Bay leaves
  • Dried thyme
  • French bread
  • Cheese – gruyere is traditional but you can substitute cheddar

Step by step French onion Soup

sauteed onions in a pan/
Cook the onions gently, stirring frequently until golden.
flour and a little sugar added to the pan.
Stir in the sugar and flour, and cook gently.
french onion soup in saucepan
Add the stock and bay leaves and simmer for 30 minutes.
adding the grilled toasts to the soup
Toast the bread, then top with cheese until melted.
Bowl of french onion soup with two cheese croutes on top.
Float the toasts in the soup and serve immediately.
bowl of French onion soup with two cheese croutes on top.

French Onion Soup

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Meltingly tender onions in a rich stock, this classic soup is served topped with croutes topped with cheese. It easy to make and tasted really delicious.
Course Soup
Cuisine French
Prep Time 10 minutes mins
Cook Time 50 minutes mins
Total Time 1 hour hr
Servings 4
Author Jacqueline Bellefontaine

Ingredients

  • 2 tablespoon Oil olive or rapeseed oil
  • 25 g butter (1oz)
  • 500 g mild onions sliced (1lb 2oz)
  • 1 teaspoon dark muscovado sugar
  • 1 tablespoon plain flour
  • 1.2 litres good beef or vegetable stock (2½ pints)
  • 2 bay leaves
  • ½ teaspoon dried thyme
  • 8 slices French bread
  • 25 g gruyere cheese grated (1oz)

Instructions

  • Heat the oil and butter in a large sauce pan and gently sauté the onions for about 20 minutes, until they have turned a pale golden colour. Stir frequently to prevent them from burning.
  • Sprinkle the sugar and flour into the pan and cook stirring for a few seconds.
  • Gradually stir in the stock and bring to the boil. Add the bay leaves and thyme. Reduce the heat, cove, and simmer gently for 30 minutes.
  • Sprinkle the cheese over the bread slices and place under a preheated grill until the cheese has melted and bubbles.
  • Remove the bay leaves and discard. Spoon the soup into warm serving bowls and float the cheese topped toasts on top of the soup. Serve immediately.

Notes

Freeze: without the cheese toasts for up to 4 months.
 
Nutrition information is calculated using an online nutrition database - is approximate and is meant as a guideline only. (It does not include seasoning.)
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About Jacqueline Bellefontaine

Jacqueline is a member of the Guild of Food Writers and has been a cookery writer and food stylist for over 25 years. She has written over 15 cookery books, in addition to writing for several major magazines. She likes to champion good basic home cooking and as the daughter of a master baker, she is passionate about home baking.

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Jacqueline Bellefontaine.

Hello I'm Jacqui
I believe that great tasting home cooking need not be hard work, so I like to write and cook recipes that are as easy as they can be. But I won't compromise on taste!

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