French onion soup recipe

  • Easy

Onions are high in fibre and packed with minerals and vitamins. They are thought to reduce anxiety and depression, and can help you sleep – make the most of this abundant vegetable with this delicious autumn soup recipe

French onion soup recipe

Onions are an essential ingredient in every kitchen, but few people know about their health benefits.

This rich, hearty soup from BBC Good Food celebrates the humble healer.

Nettle soup served with fresh cream


  • Butter 50g
  • Olive oil 1 tbsp
  • Onions 1kg, halved and thinly sliced
  • Sugar 1 tsp
  • Garlic 4 cloves, thinly sliced
  • Plain flour 2 tbsp
  • Dry white wine 250ml
  • Hot, strongly flavoured beef (or veg) stock 1.3 ltr
  • French bread 4-8 slices
  • Gruyere cheese 140g, finely grated


  • Step 1

    Melt the butter with the oil in a large heavy-based pan. Add the onions and fry with the lid on for 10 minutes until soft. Sprinkle in the sugar and cook for 20 minutes, stirring frequently, until golden and caramelised.


  • Step 2

    Add the garlic and cook the onions for a few more minutes, ensuring they don’t burn, then sprinkle in the flour and stir well. Increase the heat and keep stirring as you gradually add the wine, followed by the hot stock. Cover and simmer for 15-20 minutes.

  • Step 3

    Toast the bread under the grill, then ladle the soup into heatproof bowls. Put a slice of toast on top of the soup and pile on the cheese. Grill until melted. Alternatively, complete the toast under the grill, then serve them on top.

Recipe by BBC Good Food.