Aluminum in the kitchen

Traditional Oven – Onion Soup Recipe


  • 500 gr onions
  • 1 l  hot strongly-flavoured beef stock
  • 50 gr butter
  • 1 tbsp olive oil
  • 2 tbsp plain flour
  • 1 tsp sugar
  • Pepper
  • Salt
  • 4-8 slices French bread
  • 100 gr cheese (Gruyère)


Put 1kg halved and thinly sliced onions in a large pan and melt 50g butter with 1 tbsp olive oil. Fry for 20 mins until soft and, then, add flour and sugar. Mix all the ingredients and gradually add 1.l hot strongly-flavoured beef stock. Cover and simmer for 30 mins. Add salt and pepper.


In the meantime, toast 4-8 slices French bread for few minutes. Ladle the soup into our Flan containers, put a slice of bread on top of the Flan and pile on your cheese finely grated. Put in the oven for about 10 minutes at 480°F and serve the soup hot.

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