French Onion Soup

French Onion Soup is a famous dish. Though it takes time to prepare, this is such a delicious soup that it's well worth the effort. This recipe serves four. Here it is::

4 tablespoons butter
1 tablespoon olive oil
4 onions, finely chopped
1 clove garlic, crushed
1 tablespoon sugar
2 tablespoons red wine vinegar
1/3 cup flour
1/2 cup dry sherry
1 cup dry white wine
1 cup  beef stock
1 1/4 cups water
French bread
1/2 cup grated Parmesan cheese

Heat the butter and olive oil in a frying pan.
Add the onions and cook for about 20 minutes until brown.
Add the garlic and sugar and cook until sugar has browned.
Add the vinegar and cook for 2 minutes.
Sprinkle the flour over the onions and cook for 1 minute.
Stir in the sherry, white wine, beef stock and water.
Continue stirring until the mixture boils and thickens.
Reduce the heat and simmer the soup uncovered for about 25 minutes.
Toast slices of bread in an oven until crisp and golden.
Place the bread in the soup and add Parmesan cheese so that it melts.

If you wish, you can garnish the soup with parsley. Enjoy!