French Onion Soup
Starters French

French Onion Soup

Deeply caramelised onions in a rich broth, topped with cheesy toast. The tiers climb from a quick stock-cube version to a proper beef-and-wine bistro bowl with a Gruyre crouton.

Serves4
Time1 hr 10 min
Cost / serving£1.60
Nut-free Contains alcohol

Make it your way

Pick a tier — the ingredients, method and cost update instantly.

Better version

Slow-cooked onions deglazed with white wine and topped with Gruyre.

Per serving£1.60
Total cost£6.40
Time1 hr 10 min
French Onion Soup
Servings

Ingredients for 4

  • 6 onions , thinly sliced
  • 40 g butter
  • 1 tbsp olive oil
  • 1 tsp caster sugar
  • 150 ml dry white wine
  • 1 tbsp plain flour
  • 900 ml good beef stock
  • 1 bay leaf
  • 4 slices sourdough baguette
  • 100 g Gruyre , grated
  • salt and pepper , to taste

Method

  1. Melt the butter with the oil and cook the onions with the sugar over a low heat for 40 minutes until jammy and caramelised.
  2. Stir in the flour and cook for 1 minute, then pour in the wine and let it bubble away for 2 minutes.
  3. Add the beef stock and bay leaf, then simmer for 15 minutes and season.
  4. Toast the baguette slices and pile on the Gruyre.
  5. Ladle the soup into ovenproof bowls, top each with a cheese toast and grill until bubbling and golden.

Equipment

The three ways, side by side

Budget
£0.80 / serving · 45 min

Quick-caramelised onions in stock-cube broth with a Cheddar toast.

Better
£1.60 / serving · 1 hr 10 min

Slow-cooked onions deglazed with white wine and topped with Gruyre.

Ultimate
£3.13 / serving · 1 hr 50 min

Butter-caramelised onions, beef and red wine broth, brandy and a Gruyre-Comt gratine.