Rich and Simple French Onion Soup Recipe

Rich and Simple French Onion Soup Recipe

Cook Time: 40 minutes

There's nothing cozier than a warm bowl of freshly made French onion soup. With this top-rated recipe, you can make restaurant-worthy French onion soup in the comfort of your own kitchen. Plus, get our best ingredient tips and storage secrets.

What Is French Onion Soup?

French onion soup, or soupe l'oignon gratine, is a classic French dish made with caramelized onions and beef stock or broth. The soup is topped with bread and cheese, then gratined to rich, gooey perfection. It's traditionally served in a ramekin or a ceramic crock with a handle.

What Cheese Is Best For French Onion Soup?

French onion soup is traditionally topped with Gruyre, but other cheeses can be used. Most French onion soups are topped with three cheeses for maximum decadence. This recipe calls for Parmesan, provolone, and Swiss. Other popular choices include Fontina and mozzarella. No matter which cheeses you choose, make sure not to skimp! French onion soup should be rich and indulgent.

What Are the Best Onions For French Onion Soup?

French onion soup is traditionally made with thinly sliced yellow onions. You can also make delicious soup with red or white onions - it just depends on your flavor preferences and what you have on hand.

How to Store French Onion Soup

Transfer the cooled soup to an airtight , but leave out the croutons (they taste best when they're fresh). Store it in the fridge for up to three or four days.

How to Reheat French Onion Soup

To reheat French onion soup, bring it to a boil on the stove. You can add more broiled bread and cheese if you want to go the extra mile, but you can use store-bought croutons for quick and easy results.

How to Freeze French Onion Soup

You can easily freeze French onion soup without the croutons: Just transfer the cooled soup to an airtight, freezer-safe and freeze up to three months. To make things easier on your future self, you can freeze it in serving-size portions - that way, you don't have to thaw and refreeze the whole batch. To thaw frozen French onion soup, simply transfer it to the fridge and allow it to defrost overnight. In a rush? You can thaw it more quickly by submerging the sealed in cool water.

Allrecipes Community Tips and Praise

"Really, really excellent!," according to Audrey. "I will never buy canned French onion soup again - ever! I did cook the onions to a golden brown. And since I didn't have sherry I used a red merlot. And just a little thyme, since I wasn't sure how that would taste. This is a keeper!"

"This soup was awesome," raves CANADIANCHICK73. "I served it at my dinner party. Everyone loved it and asked for the recipe. I added 2 teaspoons of Worcestershire sauce and toasted the bread. It was excellent!"

"This soup was excellent! I did use different kinds of onions(yellow, white, and red), and my husband and I couldn't get enough," says IRED0103. "I can't wait to make it again."

Ingredients

  • cup unsalted butter
  • 2 tablespoons olive oil
  • 4 cups sliced onions
  • 5 cups beef broth
  • 2 tablespoons dry sherry
  • 1 teaspoon dried thyme
  • 1 pinch salt and pepper to taste
  • 4 slices French bread
  • 4 slices provolone cheese
  • 2 slices Swiss cheese, diced
  • cup grated Parmesan cheese

Directions

Step 1: Gather all ingredients.

Step 2: Melt butter with olive oil in an 8-quart stock pot over medium heat. Add onions and stir continuously until they are tender and translucent, but not browned.

Step 3: Add beef broth, sherry, and thyme. Season with salt and pepper. Let simmer for 30 minutes.

Step 4: Meanwhile, preheat the ovens broiler.

Step 5: Ladle soup into oven-safe serving bowls and place one slice of bread on top of each (the bread can be broken into pieces if you prefer). Layer each slice of bread with a slice of provolone, half a slice of diced Swiss, and 1 tablespoon of Parmesan cheese.

Step 6: Place the bowls on a cookie sheet and broil in the preheated oven until the cheese bubbles and browns slightly, 2 to 3 minutes.

Step 7: Serve hot and enjoy!

Nutrition Facts (per serving)

Calories 586
Total Fat 44g
Saturated Fat 24g
Cholesterol 98mg
Sodium 1592mg
Total Carbohydrate 28g
Dietary Fiber 3g
Protein 21g
Vitamin C 9mg
Calcium 452mg
Iron 2mg
Potassium 434mg

Rich and Simple French Onion Soup Recipe

FAQ about Rich and Simple French Onion Soup Recipe

Transfer the cooled soup to an airtight container and store it in the fridge for up to 3–4 days. Make sure to leave out the croutons, as they taste best when fresh.

Yes, you can freeze French onion soup without the croutons. Store it in an airtight, freezer-safe container for up to three months. For easier portioning, freeze in single servings. To thaw, transfer the soup to the fridge overnight or submerge the container in cool water for a faster thaw.

To reheat French onion soup, bring it to a boil on the stove. You can add fresh croutons and cheese if desired. If you're in a hurry, you can use store-bought croutons.

For the best results, use a thick, sturdy bread like a baguette or a French roll. Make sure to toast the bread before adding it to the soup to prevent it from becoming too soggy.

Yes, while Gruyère is the traditional choice, you can substitute other cheeses like Swiss, provolone, mozzarella, or even fontina. A combination of cheeses can add a rich, indulgent flavor.

To avoid bland soup, ensure you properly caramelize the onions for maximum flavor. Season the soup to taste with salt and pepper, and use a flavorful beef broth. Adding Worcestershire sauce or a splash of dry sherry can enhance the flavor as well.

Yellow onions are traditionally used for French onion soup because they offer the best balance of sweetness and flavor when caramelized. However, red or white onions can also be used depending on your taste preferences.

The onions are properly caramelized when they turn a deep golden-brown color and have a sweet, rich flavor. This process takes about 30 to 40 minutes on low heat. Be patient and avoid rushing it to get the best results.

You can store French onion soup in the fridge for up to 3–4 days. Make sure it is in an airtight container to preserve its flavor and prevent spoilage.

Yes, you can customize your French onion soup with additional ingredients such as garlic, bay leaves, or a splash of wine or sherry. Some people also like to add a touch of Worcestershire sauce for extra depth.

Comments

Chuck Wesserling

10/06/2025 01:52:54 PM

This is very close to a recipe I have been using for the past 30 years or so. The only changes/suggestions that I would make are to add a tablespoon of Worchester Sauce and use all butter instead of the olive oil. Make sure that you saute the onions well. (Also, make sure that you slice the onions into fairly wide slices, about 1/2-3/4" wide.) You don't want them burnt, but you do want them browned. I use Campbell's Double-Rich Beef Consumme and 1/4 cup of Sherry. For the cheese, I put a tablespoon of FRESH shredded Parmesan cheese on the bottom of the bowl, then ladle on the soup, then top with a large homemade crouton, then the swiss cheese, and another tablespoon of the fresh Parmesan. For the croutons, take a large wine-glass and press into a slice of thick bread to get the perfect circle for your soup bowl. Spread with butter and sprinkle with Parmesan cheese. Put in the oven at 250 for about 1/2 hour or until they are dried and crisp.

JollySoup9593

01/21/2024 11:16:43 PM

I am begging you to brown the onions. The recipe even says at the top that the onions are meant to be caramelized in French Onion Soup. Aside from that, toast the bread before putting it in the soup or else it will just be soggy. Also you need to pay attention to the salt, the recipe says unsalted butter and a "pinch" of salt.. if your beef stock isn't salty enough then that risks the soup being bland. You also don't want to oversalt it though, so evaluate how much it really needs based on your butter and stock.

Kim Hayes

10/14/2024 07:51:11 PM

This recipe as it is, is just OK. The entire point of French Onion soup is to caramelize the onions, which creates the rich and sweet flavour, otherwise it's onion broth. I used this recipe as a base to remind myself, since I couldn't find the old one I used to use. First, use butter, not olive oil. Caramelize the onions over a low heat - they should be dark brown and it takes about 40 minutes. I used 6 onions and could have probably added more. Then deglaze the pot with your red wine/sherry, making sure to scrape down the browned bits. Add your broth, and about a Tbsp of Worcestershire sauce, and seasonings. If the onions are properly caramelized you don't need anything but the thyme and s&p to taste. Everyone adding so much more seasoning is because the onions don't give enough depth from not being cooked enough. You have to really toast well the bread you use - either a baguette, dinner rolls... something nice and thick. A cheese with lots of flavour is best - I use gouda when I have it, swiss otherwise.

lstaub

02/29/2020 04:30:25 PM

Excellent!! I cooked the onions longer, about 30-40 min because I like them more caramelized and didn't add sherry because I was out. Absolutely delicious!

ToughPeel1270

12/03/2024 06:31:05 PM

This turned out wonderful with a few modifications! I added about 5 tablespoons of Worcestershire sauce (this is truly what gives it its rich flavor and can’t be left out). I added 1/4 cup of dry sherry and added a bay leaf to have the soup simmer with. Last but not least I browned the onions- everything combined tasted better than any restaurant French onion I’ve had!

KRex

10/22/2020 02:35:09 AM

So this is a very basic, learning how to cook from the beginning recipe. The biggest issue with this recipe is how long they cook the onions for. You absolutely, positively MUST cook and caramelize the onions to a very deep, rich brown. If you can drag this process on as long as an hour to caramelize the onions, even better. This is where all the flavor comes from. The rest of the recipe is fine, you will find many variations of which alcohol to use, red wine, white wine, port, sherry, brandy. None are wrong, it's all about your taste, but please, CARAMELIZE THOSE ONIONS!!!!!!

Wendy Cook Boots

01/20/2020 12:20:06 AM

Excellent!!! Crowd pleaser for sure! I used Cubed French bread sautéed in butter and baked into my own “croutons” and omgosh...

anchrista

02/16/2025 08:23:46 PM

I agree with other posts: I used yellow onions. 4 medium sized gave me 4 cups sliced. Must caramelize the onions - takes about an hour to do this properly. Next time I will get them nicely browned. Too much butter - probably will cut by at least a 1/3 next time. I did add the Worcestershire sauce - one post said 2 T and one said 5 T. I added about 2. I will up this to 3 or 4 T next time. I upped the sherry to 3 T. Toasted bread (I agreed with post that said it would be soggy if you didn't toast). Still needs some tweaking! Good luck. My lesson today is to always read the most helpful posts before making any recipes.

anasquishy

01/12/2024 02:15:35 AM

this was the first recipe i opened and i followed it, only to get bland soup. now i see that every other recipe says that you must carmelize the onions. kind of embarrassing, as it was meant to be a special meal for someone who loves french onion soup

HappyChive2045

11/08/2022 03:38:36 PM

Liked this one. We topped it with Gruyere cheese instead and added garlic to the soup, perfect for a cold winters night. I might add a red wine reduction for a richer taste next time.

jillibug

12/29/2017 03:10:07 AM

Really loved the soup!! I did read through the comments, and made a few suggested adjustments. Used all butter with no oil; browned the onions, increased sherry to 1/4 C; added 1 tbs Worcestershire sauce; and topped with Swiss and Gruyere. Definitely will make again and again!

Krystina Kipp

09/02/2025 08:40:18 PM

The only thing I changed, was I used grape jelly instead of sherry because I don't keep alcohol in the house. It was amazing!!

Michael

09/01/2025 07:03:25 PM

This was my first attempt to make French onion soup from scratch and it was a HUGE hit with my family. Not one bit went to waste...only to waist.

Devenne

08/17/2025 06:54:22 PM

Lovely

chickimama222

07/20/2025 02:49:33 AM

This turned out absolutely delicious! We did not have dry sherry on hand so subbed dry brut champagne, used fresh thyme from the herb garden and used Swiss, shredded mozzarella and fresh grated parm for the cheese. Very satisfying

Wren

07/03/2025 09:55:38 PM

Literally all i did was add some green onion bits. delicious!

GoldenZiti2064

06/01/2025 01:30:33 AM

The soup was very good. I slightly carmalized the onion but next time I will do it longer. I was afraid not to burn it. I did cut wider pieces. Other people comments I used one bay leave . The idea to toast the French bread was excellent. The soup was not too salty like when you buy it in restaurant. Definitely a keeper.

TidyDish2766

05/23/2025 12:51:23 AM

Excellent! I used salted butter, next time I will use unsalted as the recipe calls for and I’ll omit the salt in the recipe. I also read comments for others recommendations. I did brown the onions a bit, I also added a bit of Worcestershire Sauce as another commenter suggested. I definitely recommend this recipe and you can alter to your liking.

Matthew Sanchez

05/15/2025 01:18:08 AM

Even my picky cousin approved — shocking.

OldPulp5418

05/13/2025 05:28:58 PM

I didn’t think this recipe was robust enough for me so I added 2 tablespoons of Worcestershire sauce, two garlic cloves and two bay leaves. Perfecto.