This soup was so good. I rarely eat French Onion Soup, but I was quite happy when I saw that Sharon L had chosen it. The recipe sounded very easy, and I don’t think I’ve ever made it before.
Sharon said the key to the soup was cooking the onions very slowly until they carmelized. This did take some time, but the recipe was very straight-forward and easy to make.
Guess what I had for lunch today?

French Onion Soup
2 lbs. yellow onions, peeled, halved lengthwise, then sliced thinly crosswise
2 Tbsps. oil
2 Tbsps. butter
3 sprigs fresh thyme
1 dried bay leaf or 2 fresh bay leaves
¾ tsp. salt
¼ tsp. sugar
2 tsps. all-purpose flour
½ tsp. freshly ground black pepper
¾ C. dry white wine (or red wine)
6 C reduced-sodium beef broth (48 fl oz.)
6 diagonal slices of baguette
½ lb. shredded Gruyère (or Comte or Emmental) cheese
2 Tbsps. finely grated Parmigiano-Reggiano cheese (optional)
Heat butter and oil in a heavy 4- to 5-quart pot. Add onions, thyme, bay leaves, sugar and salt. Stirring frequently, cook onions over moderate heat until they are very soft and deep golden brown, about 45 minutes. Add flour and pepper, and stir for 2 minutes. Add wine and stir for 2 more minutes. Add broth and simmer uncovered, stirring occasionally, for 30 minutes.
While soup simmers, preheat oven to 350°F.
Arrange bread in 1 layer on a baking sheet and toast, turning over once, until completely dry, about 15 minutes. Remove croutons from oven and preheat broiler. Put heat-proof soup bowls in a shallow baking pan.
Discard bay leaves and thyme from soup and divide soup among bowls, then put a crouton in each. Add enough shredded Gruyère to cover crouton, then sprinkle each with Parmigiano-Reggiano (if using).
Broil until cheese is melted and bubbly, 1 to 2 minutes.
Make ahead: Soup can be made and refrigerated or frozen (of course, do not add croutons and cheese to soup if making ahead); cool soup completely, uncovered, then refrigerate for up to 3 days or freeze. Reheat soup before proceeding with recipe.
Makes 6 servings

Can’t you just imagine how this tastes?