Joel Callen

Food & Wine

Roast onion soup

Roast onion soup

For a warming dish during the winter months, it’s hard to go past a steaming bowl of soup. Try our roast onion recipe for a delicious, hearty meal.


  • 6 medium white onions
  • 2 bulbs of garlic
  • 2 sprigs of fresh rosemary
  • 120ml olive oil
  • 950ml vegetable stock
  • Salt and freshly ground black pepper

  1. Preheat your oven to a 180°C.
  2. Place the onions, garlic, rosemary and olive oil on a roasting tray and cook them in the oven for about 45 minutes, or until everything is soft.
  3. Leave everything to cool, then scoop the insides out of the onions and garlic and place into a large saucepan. Add the vegetable stock and use a stick blender to blend until smooth (or as smooth as you'd like - leave it chunky if you prefer). Add salt and pepper to taste.
  4. Heat the soup gently until hot and serve.
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