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Ingredients
- Brown onions 8
- White wine 2 glasses
- Rounds of toasted baguette 6
Method
- Slice the onions thinly and then sauté them in the olive oil until they brown. Add the white wine, reduce by a third, then add 2 litres of water.
- Allow to cook for 20 minutes (the onions must be meltingly tender and the soup must be a nice brown colour) and season.
- To serve, cover the baguette toasts with grated cheese, place them on top of the soup a