This is so easy and so comforting. Saute three sliced onions in olive oil and salt/pepper for about 10 minutes until they are soft and starting to caramelize. Stir in about 1 tablespoon of flour and cook for about one minute. Add 2 cans of beef broth, a bay leaf, chopped rosemary and about 1/4 t dried thyme and cook about 10 minutes. Season with salt and pepper to taste. Place bread,( toasted or not if it's a nice hearty bread. We used garlic bread, but most rustic bread work fine) on top of the soup and sprinkle on any cheese. I used Cracked Pepper Gouda and Parmesan. Broil until brown, about 1 minutes, and serve immediately.