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 50 min
Cost / serving£3.13
Nut-free Contains alcohol

Make it your way

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

Ultimate version

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

Per serving£3.13
Total cost£12.50
Time1 hr 50 min
French Onion Soup
Servings

Ingredients for 4

  • Soup
  • 8 onions , thinly sliced
  • 60 g unsalted butter
  • 2 cloves garlic , crushed
  • 2 tbsp brandy
  • 200 ml dry red wine
  • 1 l fresh beef stock
  • 2 thyme sprigs
  • 1 bay leaf
  • Gratine
  • 4 slices day-old sourdough
  • 120 g Gruyre , grated
  • 60 g Comt , grated
  • sea salt and black pepper , to taste

Method

  1. Melt the butter and cook the onions over a low heat for 60 minutes, stirring often, until mahogany and deeply caramelised.
  2. Add the garlic for the last minute, then pour in the brandy and flame it off, followed by the red wine; reduce by half.
  3. Add the fresh beef stock, thyme and bay, then simmer gently for 25 minutes; discard the herbs and season carefully.
  4. Toast the sourdough and rub lightly with a cut garlic clove.
  5. Ladle the soup into ovenproof bowls, float a crouton on each and blanket with the mixed Gruyre and Comt.
  6. Grill until the cheese is molten, blistered and bubbling over the rim, then serve at once.

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.