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Rich French Onion Soup Recipe

Rich French Onion Soup Recipe

When entertaining guests, I bring out this savory soup while we're waiting for the main course. It's simple to make—just saute the onions early in the day and let the soup simmer until dinner-time. In winter, big bowls of it make a warming supper with a salad and biscuits. —Linda Adolph, Edmonton, Alberta
TOTAL TIME: Prep: 20 min. Cook: 5 hours YIELD:10 servings


  • 6 large onions, chopped
  • 1/2 cup butter
  • 6 cans (10-1/2 ounces each) condensed beef broth, undiluted
  • 1-1/2 teaspoons Worcestershire sauce
  • 3 bay leaves
  • 10 slices French bread, toasted
  • Shredded Parmesan and shredded part-skim mozzarella cheese


  • 1. In a large skillet, saute onions in butter until crisp-tender. Transfer to a 5-qt. slow cooker. Add the broth, Worcestershire sauce and bay leaves.
  • 2. Cover and cook on low for 5-7 hours or until the onions are tender. Discard bay leaves.
  • 3. Ladle soup into ovenproof bowls. Top each with a slice of toast; sprinkle with desired amount of cheese. Place bowls on a baking sheet. Broil for 2-3 minutes or until cheese is lightly golden. Yield: 10 servings.

Recipe Note

Test Kitchen Tips

  • To give this dish a fragrant, unexpected quality, toss a couple of fresh thyme stems (or 1/4 teaspoon dried thyme) into your slow cooker. Discard stems before serving.
  • No time for chopping onions? Sliced onions work as well.
  • Soups can be brightened up before serving by adding a little citrus juce or vinegar. A teaspoon or two of cider vinegar tastes great in this soup.
  • Nutritional Facts

    1 serving (calculated without cheese): 296 calories, 11g fat (6g saturated fat), 25mg cholesterol, 722mg sodium, 41g carbohydrate (6g sugars, 4g fiber), 8g protein.

    Reviews for Rich French Onion Soup

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    BKinsey User ID: 6322146 259729
    Reviewed Jan. 15, 2017

    "This is my family's favorite French onion soup recipe!!"

    4robsgirl User ID: 7852780 258593
    Reviewed Dec. 25, 2016

    "Boring, bland, flavorless. Used regular beef broth, not reduced sodium but it was still so blah. Won't make this again."

    joycerm53 User ID: 703299 254938
    Reviewed Oct. 2, 2016

    "This is an excellent recipe for French onion soup. I have made it as written and it is great. I have also followed another reviewers advice and carmelized the onions in the crockpot overnight and finished it the next day with a bit of red wine. Delicious! Joyce Moynihan, Volunteer Field Editor"

    nuheart158 User ID: 8185348 243607
    Reviewed Feb. 10, 2016

    "To the people complaining it's not vegetarian, use Vegetable broth!"

    cindiak User ID: 221828 242049
    Reviewed Jan. 18, 2016

    "I also carmelized the onions. I made the rest of the recipe as stated and it will now be my "go to" recipe."

    abashu User ID: 6784654 241386
    Reviewed Jan. 9, 2016

    "I cut it down because it is just two of us. I didn't chop the onions but sliced them then cut then slices in half. I liked the flavor of the onions. I like the flavor the Parmesan cheese gave to it as well."

    AppleDumplingTwo User ID: 7589324 240390
    Reviewed Dec. 27, 2015

    "I use the slow cooker to caramelize the onions first in the slow cooker, then do the rest of the recipe so it takes me a full day to do this soup. I put the onions on overnight, add the rest in the morning and prepare as above. Sometimes I add thyme also. I want to try the idea mentioned of using cider. I'll use apple juice instead since I always have it on hand and see how it is. Sounds really unique and tasty."

    eebiedritz User ID: 1536510 240378
    Reviewed Dec. 27, 2015

    "While I haven't made this specific recipe, I just wanted to mention that you can also use the "Better Than Bouillon" beef base instead of the canned soup (3 Tbsp. base to 8 cups water). They even make a low salt version although I just use the regular version and to us the salt level is perfect. I too caramelize the onions in butter with a little oil, 4 Tbsp. butter with 2 Tbsp. oil, in a large pot. Once caramelized, I sprinkle with 3 Tbsp. flour;stir, and then add the base/water to the pan. To make the soup on the stove top, after combining all the ingredients, bring to a boil and then lower to a simmer, partially covered, for 45 minutes before ladling it into the ovenproof bowls. We prefer Mozzarella only and my husband likes it when I put some of the shredded cheese in the bottom of the bowl before ladling in the soup, then the bread with lots of cheese on top and then under the broiler. You can also sprinkle with a little paprika if you wish for a little added color."

    econjack User ID: 5868943 240349
    Reviewed Dec. 27, 2015

    "When I make French Onion soup, I use 2:1 ratio of beef broth to apple cider. It gives it a hint of flavor that people like...but can't figure out. Always fun to serve to guests."

    MHalterman User ID: 6584696 236231
    Reviewed Nov. 2, 2015

    "Yummy soup. I used Swanson's beef broth and toasted white bread."

    angieact1 User ID: 1990802 218163
    Reviewed Jan. 18, 2015

    "I love French onion soup and this one hits the spot!"

    Belenestradau User ID: 8116741 203445
    Reviewed Nov. 22, 2014

    "Love this recipe. Has always been one of my favorites."

    [email protected] User ID: 1289836 76011
    Reviewed Feb. 27, 2014

    "This was excellent served in a bread bowl with provolone cheese melted over the top!"

    Arctic User ID: 76280 37433
    Reviewed Feb. 23, 2014

    "Loved it. Cut in half for just the two of us. Would make again."

    dccookin User ID: 7162688 66332
    Reviewed Jan. 25, 2014

    "Delicious! When our bread went moldy, we finished off the soup by adding macaroni - we liked it even better that way!"

    sjmdam User ID: 4248228 66063
    Reviewed Jan. 18, 2014

    "this had a great flavor I paired it with the salad croutons receipe on here and it was so good."

    Appy_Girl User ID: 1132413 27330
    Reviewed Jan. 4, 2014

    "This is a very lovely recipe. I made mine on top of the stove. I reduced the butter to 1/4 cup and used a 1/4 cup of olive oil to make up the difference. I caramelized the onions first. Then completed the recipe and simmered it for quite a while on a low simmer. the smell was wonderful.Any left overs can be recycled onto several other recipes. Many good choices to choose from. Thickened as a gravy for Roast beef is one. Any left over onions makes a great topping for a cheeseburger. And add some of the broth to the meat mixture before you shape the burgers.I really enjoyed this Recipe.


    ahenwood User ID: 3725052 71879
    Reviewed Dec. 30, 2013

    "This recipe was SO easy and delicious. My husband loved it. I'm very excited to add it to my repertoire!"

    ms11145 User ID: 1604521 203444
    Reviewed Dec. 27, 2013

    "I make this in the crockpot. I carmelize the onions before adding the liquid. Gives a depth of flavor. Although I don't drink wine, I do keep wine just for this soup. I add about 1/3 cup of red wine. The alcohol cooks out leaving a very tasty soup making it a 5 star soup"

    pajamaangel User ID: 1603339 74010
    Reviewed Dec. 23, 2013

    "I thought this was very good. I don't know why some reviewers say it had no flavor. I thought it tasted just like it should. I didn't use the bread since I have celiac and it was still quite delicious."

    designsolutions User ID: 3493637 27317
    Reviewed Dec. 1, 2013

    "Very good will make again"

    plyrdojo User ID: 7506788 74008
    Reviewed Nov. 26, 2013

    "I make all time with vegetable broth I make myself. Just as good."

    auntiegps User ID: 6854591 83721
    Reviewed Nov. 24, 2013

    "this sounds really great. instead of the beef broth, i used beef consomme' & pecorina/romano cheese in place of the parmesan"

    Barb58b User ID: 1392332 75641
    Reviewed Jun. 5, 2013

    "This recipe doesn't belong in the vegetarian section since it's made with beef broth."

    angieherzberger User ID: 5719645 83669
    Reviewed Jan. 12, 2013

    "Very good, even without bread and cheese."

    amyposten User ID: 6930161 66021
    Reviewed Jan. 6, 2013

    "made this for my family. We loved it. we were looking for something different for us and it was amazing.We will make it again. and again."

    Nadams01 User ID: 6903763 26375
    Reviewed Oct. 24, 2012

    "This recipie was listed under the vegetarian section. It is not vegetarian since it has beef broth. Very disappointed."

    dilbert098 User ID: 3743376 73962
    Reviewed Aug. 30, 2012

    "The broth had no flavour, we didn't finish our dish. French onion soup is one of my favourites. Not sure how this won a contest..."

    Diannecat User ID: 5596788 203443
    Reviewed Aug. 22, 2012

    "This is NOT a vegetarian recipe- contains beef BROTH!!!!"

    kitchwitch86 User ID: 1091421 203442
    Reviewed Dec. 30, 2011

    "My son said this is flavorless. I don't eat it made it for him. He hated it"

    Coryskitchen User ID: 6228848 37432
    Reviewed Dec. 2, 2011

    "Was a hit in my family. I have made it twice now. I had simmered it on the stove top to save time. The soup came out perfect either way! If only my mascara had held up as good after chopping all the onions. :D"

    Coryskitchen User ID: 6228848 90609
    Reviewed Oct. 10, 2011


    ejshellabarger User ID: 3870843 66015
    Reviewed Nov. 27, 2010

    "Simple, tasty recipe! I sautéed 2 garlic cloves in with the onions and added some dry white wine to the broth. Excellent!"

    jporter10738 User ID: 2533873 26373
    Reviewed Nov. 12, 2009

    "This was a good first-time recipe. I thought it was good but missing something. Next time I make it I might add a bit of garlic and wine. Though I did toast bread and used smoked mozzarella cheese and the smoked flavor added a lot to it."

    twinkle8o3 User ID: 1013923 51220
    Reviewed Sep. 27, 2009

    "One of my all-time favorite recipes. The best French onion soup I've ever had!!!"

    mjjc User ID: 621738 75599
    Reviewed Aug. 21, 2009

    "I'm so excited to try this recipe. I have all the ingredients and made my croutons last night - I prefer those also over the bread slice. Easier to eat. I hope this is as good as our local restaurant serves. My honey has been wanting me to make some french onion soup. Happy Cooking!!!"

    alohamryan User ID: 3506517 76008
    Reviewed May. 13, 2009

    "This is a super easy, tasty recipe for the family. We used Low Sodium broth for dietary needs.After a second time, we added 2/3 cup of apple juice to sweeten it a little and it was Wondeful. A KEEPER!!!"

    Detrick User ID: 1002007 38065
    Reviewed Jan. 25, 2009

    "This was excellent. We added pepper and used croutons w/cheese instead of the French bread. Great for double recipe and freezing."

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