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Classic French Onion Soup

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Pure alchemy — slow-cooked onions transformed into something deep and beefy with stock, wine and time. Topped with a raft of bread and bubbling cheese. Cheap onions, properly handled, become extraordinary.

Prep 10 mins
Cook 1 hr
Servings 4
Difficulty Medium
Per serving £1.28

Approx £5.12 total based on typical supermarket prices in GB. See yours →

S by Steven Tobin · Published 4 May 2026
Classic French Onion Soup

The recipe

Instructions

  1. 1
    Slice the onions thinly. Melt the butter and oil in a heavy pan, add the onions and a pinch of salt and cook on a low heat for 30 minutes, stirring often, until deep brown and jammy.
  2. 2
    Add the sugar, garlic and thyme and cook a further 5 minutes.
  3. 3
    Pour in the wine and let it bubble for 2 minutes, then add the hot stock. Simmer gently for 20 minutes.
  4. 4
    Toast the bread slices. Ladle soup into ovenproof bowls, float a bread slice on top and pile on the grated cheese.
  5. 5
    Slide under a hot grill until the cheese is bubbling and golden — about 3 minutes. Serve straight away with a warning about hot bowls.

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About Steven Tobin

Steven is the founder, recipe developer, and chief washer-upper at Budget Dinner Recipes. A passionate home cook from a big foodie family, he's spent years collecting and perfecting recipes from across the world — from Malaysian laksas and Kenyan curries to weeknight British classics. Family meals are at the heart of e…

View all recipes by Steven Tobin →

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