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March 15, 2010

Recipe for French onion soup

French onion soup

Real French onion soup tastes oh-so-sweet. Not salty, not beefy, not cheesy. Sweet, from the sugar in the onions released over a long, slow cook. It's a miracle, really, that water, bones and onions -- three humble ingredients -- conspire to make something so utterly sublime. The key to French onion soup is beef stock, and it's easy to make your own. Get a head start on sweetness by using sweet Vidalia or Walla Walla onions, if you can find them; if not, plain yellow onions will be fine. The crouton on top is optional, but the bread disintegrates into the soup and gives it added body, and the traditional topping of Gruyere... well, everything tastes better with cheese.

French onion soup

Serves 6-8. Can be made ahead and frozen.

Ingredients

3 Tbsp olive oil
2 Tbsp butter
6 cups onions, peeled, thinly sliced
1 Tbsp kosher salt
1 Tbsp sugar
2 Tbsp best balsamic vinegar (I use Rubio)
3 Tbsp unbleached all-purpose flour
3/4 cup dry white wine
3 quarts homemade beef stock
Kosher salt and fresh black pepper, to taste (you'll need plenty of both)
1/4 cup grated Gruyere cheese
Slices of French bread
1 clove garlic, peeled

Directions

In a Dutch oven or heavy stockpot, heat the oil and butter over low heat. Add the onions, and cook, stirring frequently, for 1 hour, until the onions are very soft but not yet beginning to brown. Stir in 1 Tbsp kosher salt and the sugar, and cook for 15 minutes. Add vinegar and cook for 5 minutes. Stir in flour, and cook for 1 minute until the flour is incorporated and starts to bubble. Add the wine, then the beef stock.

Raise the heat to medium, until the soup boils, then reduce heat and simmer for 30 minutes. Adjust the taste with salt and pepper; if you've used homemade stock, you'll need plenty of both. Remove from the heat and set aside, covered. (At this point you can let the soup cool completely, and refrigerate or freeze it. Reheat before serving.)

Turn the broiler on.

Cut the bread into 1/2-inch slices, and place the slices on a rimmed baking sheet. Toast briefly until the bread is lightly browned. Remove the baking sheet from the oven, and rub the toasted sides of the bread with the garlic clove. Flip the bread, and top each with a bit of cheese. Place the baking sheet under the broiler until the cheese is melted.

Ladle the soup into serving bowls, and top each with one or two cheese-covered croutons. Serve hot.

Print recipe only.

Comments

1
Posted by: Sandie {Inn Cuisine} | March 15, 2010 at 03:08 AM

Oh, you've hit on my favorite soup: French Onion. I have always loved it, but became addicted when the Greek restaurant I worked at in college served this at lunch. Topped with gooey Swiss cheese, it became my after-shift snack!

I can't wait to give your version a try, and you're so right: long & slow is the only way to cook the onions for French Onion Soup. (P.S. I've never used Walla Walla onions, only Vidalia---so I'm anxious to try them next time I find some!)

2
Posted by: Alta | March 15, 2010 at 08:57 AM

Oh, how I love a good French onion soup. My mouth is watering, and it's not even 8am.

3
Posted by: T.W. Barritt at Culinary Types | March 15, 2010 at 09:26 AM

I like that touch of balsamic vinegar.

4
Posted by: Kalynskitchen | March 15, 2010 at 07:21 PM

Oh yum, I love French Onion Soup. I once worked in a French restaurant where there were certain items we could eat for free. I was in college, so this was a nice perk, and I ate French onion soup nearly every time I worked!

5
Posted by: Milton | March 16, 2010 at 07:06 AM

ditto on what Alta said

6
Posted by: Milton | March 27, 2010 at 05:52 AM

I made this last night. It was unbelievably good. Every single person at the table was raving too. Huge thanks for sharing this great recipe.

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  • I'm Lydia Walshin, a longtime food writer who lives and cooks in a real log house. If I could, I'd eat Chinese noodles, grapes, ice cream and soup every day.
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