Recipe details

French onion soup

French onion soup

Sopa de cebolla francesa

Easy

Contains allergens

Cereales con glutenLeche

Incomplete allergen information: some ingredients have not been reviewed yet. Always check the labels before cooking.

Preparation time
95 min
Servings
4

Summary

The soupe à l'oignon of Parisian bistros: onions caramelised very slowly, beef stock and white wine, topped with bread and cheese and grilled until bubbling. Humble, comforting and perfect for cold nights.

Ingredients

4 servings
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  • 1 tablespoon Wheat flour
  • 50 g Butter
  • 1 tablespoon Olive oil
  • 1 kg Onion (thinly sliced)
  • Salt (to taste)
  • Black pepper (freshly ground)
  • 2 sprigs Thyme
  • 1 leaf Bay Leaf
  • 1.2 l Beef Stock (homemade or good quality)
  • 150 ml Dry White Wine
  • 150 g Gruyère (grated)
  • 8 slices Baguette (a day old)

Instructions

  1. Melt the butter with the oil in a large heavy-based pan. Add the onions with a pinch of salt, stir to coat and cook covered over medium-low heat until soft and they have released their liquid.

    15 min

  2. Uncover and keep cooking over medium-low heat, stirring every few minutes and scraping the bottom, until the onions are greatly reduced and a deep mahogany colour. If they catch, add a spoonful of water and scrape the bottom clean.

    45 min

  3. Sprinkle over the flour and stir for two minutes. Pour in the wine, let it bubble until almost completely evaporated, then add the stock, thyme and bay leaf.

    5 min

  4. Simmer the soup gently, half covered. Remove the herbs, taste and adjust the salt and pepper.

    25 min

  5. Meanwhile, toast the bread slices in the oven until dry and crisp. Turn on the grill.

  6. Ladle the soup into ovenproof bowls, top with one or two slices of bread and cover generously with cheese. Grill until the cheese bubbles and browns at the edges, and serve at once, taking care as the bowls will be very hot.

    5 min

Notes

All the flavour comes from the onions, so don't rush them: they should go from white to golden and then to a deep mahogany, stirred often, with the heat lowered if they catch. There's no need to add sugar. Gruyère is the usual cheese, though Comté or Emmental work too. Without the topping, the soup keeps for three days in the fridge and freezes well; grill the portions just before serving. For a vegetarian version, use a good dark vegetable stock.

More information

Guide indicatorsDifficulty, quality and data reliability

Guide indicators

Estimated difficulty48/100
Recipe completeness60/100
Nutrition reliability
Medium

Calculated automatically from the ingredients, steps, time and community feedback. They are not a guarantee.

StorageKeeps 3 days in the fridge
Cuisine: FrenchKeeps 3 days in the fridgeFreezer friendlyGood for batch cooking

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