For 4 people
For 4 people
Put the onions previously peeled in thin rings
In a saucepan, pour the butter and brown the onions
Sprinkle with flour onions, stir and continue cooking for a few seconds
Season, moisten with the broth, cover the pan and cook for 30 minutes
Recover 4 individual bowls in the oven, divide the soup and place the slices of bread on the soup
Cover with cheese and go to the grill for a few minutes before serving.