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French Red Onion Soup

By Angie McGowan |

I found this big bag of red onions at the supermarket on sale the other day. I’ve been using them in sandwiches, but I was thinking about what else I could do with them to really show off their flavor. Usually, I only use red onions for sandwiches when I can’t find vidalia onions, my favorite sweet onion. I have even been known to eat vidalia onion sandwiches, a weird habit that I acquired from my great grandmother.

I came up with the idea to put red onions in a french onion soup along with some red wine. I added lots of flavor to this soup by adding Worcestershire sauce and balsamic vinegar. I used dried tarragon, but you could also use dried thyme instead. I topped this soup with a few slices of french bread and lots of Gruyere cheese. Gruyere is traditional for French onion soup, but since it can be a little pricey, you can substitute Swiss cheese. Then I melted it under the broiler. It’s oh so ooey gooey and delicious.



1 1/2 lbs red onions, sliced in 1/2 inch wedges
1/2 lb sweet yellow onions, sliced in 1/2 inch wedges
2 tablespoons butter
2 tablespoons olive oil
1 tablespoon balsamic vinegar
1 tablespoon Worcestershire sauce
1/4 teaspoon dried tarragon
1/4 teaspoon freshly cracked black pepper
2 cups chicken broth
2 cups beef broth
1/2 cup red wine

To garnish

1 fresh baguette
2 cups freshly grated Gruyere cheese


1. Preheat a large soup pot. Add olive oil and butter, and then onions. Cover with a lid and cook over medium heat until browned, stirring frequently to prevent burning, about 20 – 30 minutes.

2. When onions are browned, add balsamic vinegar, Worcestershire sauce, dried tarragon, freshly cracked black pepper, chicken broth, beef broth and red wine. Bring to a boil and cook over medium heat for 15 – 20 minutes.

3. Preheat broiler. Spoon soup into oven safe bowls and top with a slice of baguette and 1/2 cup cheese. Melt cheese under broiler and serve.

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About Angie McGowan


Angie McGowan

Angie McGowan was a contributing blogger to Babble’s Family Kitchen, a daily food blog with recipes from her kitchen. She currently creates fun recipes for Betty Crocker, Pillsbury and many other companies. You can find more of her recipes on her personal blog, Eclectic Recipes.

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4 thoughts on “French Red Onion Soup

  1. Angel says:

    Looks very taste :)

  2. alloy says:

    Any suggestion to making this soup vegetarian?

  3. Holly says:

    I love this recipe but any tips on what to use instead of red wine?

  4. Terri Wehyer says:

    For what it’s worth…I love French Onion Soup and over the past several year have been having a Roasted Bone-in Prime Rib (whatever we can afford) and using for the broth! One of the best ideas/traditions we’ve incorporated.

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