Caramelised onion soup with cheesy floats

Lentils make a hearty addition to this French favourite.

  • 1 hr cooking
  • Serves 4
  • Print


Caramelised onion soup with cheesy floats
  • 40 gram butter
  • 5 large onions, peeled, halved and sliced
  • 1 teaspoon caraway seeds
  • 2 tablespoon balsamic vinegar
  • 1 tablespoon brown sugar
  • 2 tablespoon worcestershire sauce
  • 1 litre quality beef stock
  • 2 cup water
  • 3/4 cup brown lentils
  • 1/2 french stick or similar
  • 1/2 cup grated tasty or mozzarella cheese


  • 1
    In a large saucepan, melt the butter and saute the onions and caraway over a medium heat for about 8-10 minutes until they are soft and starting to colour – this brings out their sweetness.
  • 2
    Add the vinegar, brown sugar and Worcestershire sauce and cook for 5 minutes. Add the stock and water, then cover and simmer for 20 minutes.
  • 3
    Rinse the lentils, add to the soup and simmer for a further 20 minutes or until the lentils are al dente. Check for seasoning.
  • 4
    To make the cheesy floats, cut the French stick into thin rounds and arrange on a lined baking tray. Top each with grated cheese, then toast under the grill for 3-4 minutes until golden and bubbling.
  • 5
    Sprinkle with seasoning or fresh herbs if desired.


Caramelising the onions gives this soup an intense, aromatic flavour. The lentils add a bit of texture but won’t make it too cloudy. The tasty little cheese floats are delicious once the soup soaks in.

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