French Onion Soup - cooking recipe

Ingredients

2 tablespoons butter
1/4 cup olive oil
3 lbs onions, sliced thin
2 cloves garlic, minced very fine
1 teaspoon sugar
2 cups dry white wine
6 cups beef stock or 6 cups chicken stock (the beef will make a darker, more robust soup)
12 slices French baguettes, 1/2 inch thick,toasted
2 cups swiss cheese, grated
3 teaspoons parmesan cheese, grated

Preparation

Melt butter with oil in large saucepan over medium heat.
Add onions, garlic and sugar and cook until lightly-coloured, stirring occasionally, about 6-7 minutes.
Add wine and bring to a boil.
Cook 5 minutes.
Add stock and bring to simmer.
Simmer uncovered for 1 1/2 hours.
Season to taste.
(can be prepared 1 day ahead) Preheat broiler.
Ladle soup into 6 ovenproof bowls.
Top with 2 slices of toasted bread each, sprinkle with 1/3 cup Swiss cheese each, sprinkle with 1/2 tsp Parmesan cheese each.
Broil until cheese melts.
Serve immediately.