Vidalia Onion Soup

I love a good cup of French Onion Soup. I have attempted to make it at home, but it doesn't turn out well for me. When I saw this recipe I decided to make another attempt at it. It was a really good attempt too. My 15 year old dd raved about it saying that it was one of the best things that I have ever made. The recipe says to put cheese and croutons on it an broil for a few minutes. I didn't want to do that so I just sprinkled Parmesan on top.

Source:http://vintagevictuals.com

Ingredients:
4 tbsp butter ( I used 2 tbsp)
4 large Vidalia onions, sliced ( I used 3)
5 cups chicken stock ( I used 4)
A pinch of dried thyme
A pinch of dried parsley
salt and pepper to taste
1 c Parmesan cheese
Mozzarella cheese ( I omitted)
2 tbsp cognac ( I omitted)
Croutons ( I omitted)

Melt the butter over medium heat in a pot. Add the sliced onions and cook for 35-40 minutes, until soft and golden brown.
Add the chicken stock, and turn the heat to medium-high. Bring just to a boil. Turn the heat down to a simmer.
Add herbs, cognac, pepper and salt. Cook for 15 minutes.

Preheat your oven to 400 degrees. Place croutons and one tablespoon of Parmesan cheese on the bottom of each bowl. Add soup, and top with mozzarella cheese. Bake for 10 minutes, or until the cheese melts.