2 tablespoons of butter
175 grams of chopped onions, sliced thin
1 teaspoon of flour
2 1 / 2 cups of beef broth
Salt and freshly ground black pepper
1 bay leaf
4 thin slices of french bread
2 tablespoons of grated cheese
Melt the butter in a saucepan.
Add the onions and fry over at very low heat until golden brown.
Stir in flour and broth slowly, stir and allow to boil well.
Season well with salt and pepper, and add the bay leaf.
Cover and simmer for half an hour, until the onion are wellcooked.
Remove bay leaves and check seasoning.
Sprinkle the bread with grated cheese and place in broiler, preheated to 180 degrees, until the cheese melted.
Serve in bowls with slices of bread floating on top of the soup.