This recipe will make 4 bowls of soup. To serve more, simply double the recipe. I love the mixture of half yellow and half sweet onions but you can easily use all sweet or all yellow, if you prefer.
1/8 cup (1 oz.) unsalted butter
1/2 lb. yellow onions, thinly slice (2 cups)
1/2 lb. sweet onions, thinly sliced (2 cups)
Salt and freshly ground pepper
1 tsp. white sugar
1 quart (4 cups) good quality beef broth (homemade or store-bought)
1 baguette, cut into at least sixteen 3/4-inch slices
1 bay leaf
2 cups Gruyere cheese, grated (you could also use Swiss or Emmanthal, but Gruyere is my favourite)
In a large soup pot or Dutch oven, melt the butter over medium heat. Season with about 1 tsp. of salt and some freshly ground pepper. Stir to coat onions in butter. Reduce the heat to low and place a piece of foil wrap right over the onions. Then place the lid on the pot. Allow to cook, over low heat, stirring every 10 minutes, for 40 minutes or until the onions are soft. Remove foil and lid. Increase heat to medium-high. Add 1 tsp. sugar and cook, stirring, until the onions are golden. Be patient. It will take 10 minutes or so. You definitely want to cook off all the liquid and then the onions should develop colour. Don't wander far during this stage, especially once the liquid has cooked off as the onions can burn quickly if you're not watching and stirring regularly.
Once the onions are done, add the beef stock and stir, scraping the bits from the bottom of the pan. Add the bay leaf. Bring to a boil and then reduce heat to low and simmer for about 10 minutes. (*This is a good time to taste the soup and add additional salt and pepper, as needed)
Meanwhile, preheat the oven to 350° F. Slice the baguette into 3/4-inch slices and place onto a baking sheet. Bake until crisp and lightly browned, about 15 minutes (turn pieces of bread once during that cooking time.) When baguettes are done and removed from the oven, change your oven setting to "Broil" to pre-heat.
Prepare your soup bowls by placing onto a baking sheet. Place 3 toasted baguette slices into the bottom of the bowls. Spoon soup over baguettes and top with grated Gruyere. Place baking sheet under the broiler and heat until cheese is melted and bubbling. Serve with any extra baguette toasts on the side. Enjoy!
Prep time: 50 min
Cook time: 10 min
Total time: 1 hour
Yield: 4 servings
Adapted from a Fine Cooking recipe
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Comments
This looks absolutely delicious and comforting! Great recipe for the New Year! :)
Kristy on January 6, 2012 9:04 AM
Thanks Kristy. I must confess, I am having a hard time getting it out of my mind, it was that good. Trying to resist the urge to make it again tonight ;)
Jen on January 6, 2012 10:55 AM
I served French Onion Soup on Christmas Eve and one tip I can give is to cut the baguette into 1" cubes, place it on top of the soup, then sprinkle the cheese on top of that before broiling. I'm not sure where I saw it recently, but it was happily received by my guests as there wasn't a mass of soggy bread at the bottom of the bowl.
Daniela on January 9, 2012 2:44 PM
I love Daniela's bread cube tip. I'm doing that next time!
Jen on January 9, 2012 2:45 PM