French Onion Soup

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This classic French Onion Soup has a rich, silky broth made from thinly sliced onions, butter, white wine, beef broth, fresh thyme and bay leaves. All topped with a toasted baguette and hot, bubbly Gruyere cheese. French Onion Soup

There are so many different ways there are to make a classic, homemade french onion soup recipe. From whether you start things off with oil or butter, to what type of broth you use, the wine that you use, and even what cheese goes on top. Each recipe will vary in these ingredients.  I have tried them all, I’ve researched a lot, and I’ve finally got the best French Onion Soup recipe nailed down. So first things first. The onions. 

Best Onions to use for French Onion Soup

A combination of yellow onions and sweet onions is ideal when making French Onion soup, as each type of onion adds a different element of flavor. Combining the two allows you to enjoy the best of what each has to offer.

Traditional Cheese for French Onion Soup

Gruyere cheese is ideal for French Onion Soup, however less expensive options include Swiss, Provolone, or a combination of the two.

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What kind of Broth do you use?

Although some recipes call for using only beef broth, adding in a bit of chicken broth will add a greater depth of flavor. Homemade chicken broth is absolutely ideal for the best French Onion Soup.

French Onion Soup Broth

Homemade Chicken Broth:

Homemade chicken broth is easy to make at home and makes your soups and stews taste twice as good:

-Take a leftover chicken carcass (even a small rotisserie chicken is great for this), and place the bones and all of the scraps into a medium/large pot.

-Add enough water to cover the chicken by an inch or so. Add in any onions/celery if you have them.

-Cover the pot, leaving a small crack for steam to escape and simmer for an hour or two.

-Place a fine mesh strainer over another large pot and pour the mixture into the strainer, allowing the broth to seep through the strainer into the pot. The remains in the strainer can be discarded.

-Allow the chicken broth to cool and freeze for your future soup needs!

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Print
5 from 4 votes
Servings: 6
French Onion Soup
Prep Time:
15 mins
Cook Time:
1 hr 25 mins
Total Time:
1 hr 40 mins
 
Course: Soup
Cuisine: French
Keyword: French Onion Soup

This classic French Onion Soup has a rich, silky broth made from thinly sliced onions, butter, white wine, beef broth, fresh thyme and bay leaves. All topped with a toasted baguette and hot, bubbly Gruyere cheese.

Ingredients
  • 4 large yellow onions
  • 2 large sweet onions
  • 5 Tablespoons butter
  • 4 sprigs fresh thyme
  • 2 Bay leaves
  • ¾ cup dry white wine Chardonnay or Pinto Grigio
  • 4 cups beef broth
  • 1.5 cups chicken broth
  • 1 baguette
  • 3 Tablespoons olive oil
  • 6 slices Gruyere cheese
Instructions
  1. Slice the onions into thin strings, (using a mandoline slicer makes this much easier).

  2. In a large (4-5 quart) soup pot, heat the onions, butter, thyme, and bay leaves over medium heat, uncovered, stirring occasionally. Do this until until they’re completely caramelized and a rich, brown color. This process takes about 40 minutes. 

  3. Add the white wine and cook for an additional 2-3 minutes. Pour in the beef broth and chicken broth, and simmer for another 45 minutes.

  4. While the soup simmers, preheat the oven to 350 degrees. Slice the baguette into ½ inch thick slices. Take 6 slices and brush each side with olive oil. Place them on a baking sheet in the oven for about 7 minutes, flip, and bake for another 7 minutes, or until they are firm and dry.

  5. Increase the oven temperature to a high broil. Spoon the soup into 6 oven-safe soup crocks, and place a baguette on top of each one. Top each crock with a slice of cheese, the corner of each slice should hang over the rim of the crock. Broil the soup in the oven until the cheese is hot, bubbly and begins to brown, about 2 minutes.

Recipe Notes

Other cheese options include Comte, Emmental (Swiss), and/or Provolone.

The baguettes can be made up to 3 days ahead of time and can be stored in an airtight container once they’ve completely cooled.

Nutrition Information
Calories: 478, Fat: 27g, Saturated Fat: 12g, Cholesterol: 55mg, Sodium: 1256mg, Potassium: 461mg, Carbohydrates: 37g, Fiber: 3g, Sugar: 9g, Protein: 15g, Vitamin A: 11.8%, Vitamin C: 19.3%, Calcium: 37.6%, Iron: 13%

 

This classic French Onion Soup has a rich, silky broth made from thinly sliced onions, butter, white wine, beef broth, fresh thyme and bay leaves. All topped with a toasted baguette and hot, bubbly Gruyere cheese. | The Cozy Cook | #soup #frenchonionsoup #onions #recipe #easyrecipes #winterrecipes #gruyere