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Rich French Onion Soup

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
  • Makes
    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


  • 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.
  • Cover and cook on low for 5-7 hours or until the onions are tender. Discard bay leaves.
  • 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.

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.
  • Nutrition Facts
    1 serving (calculated without cheese): 188 calories, 10g fat (6g saturated fat), 24mg cholesterol, 1431mg sodium, 19g carbohydrate (5g sugars, 2g fiber), 7g protein.
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    Average Rating:
    • Tammy
      Jan 8, 2021

      Ive used this recipe quit often as a base, I do add extra Worcestershire and 2 cloves of minced garlic.and 3 extra beef bouillon cubes, must be caramelized

    • Cathleen
      Nov 30, 2020

      I used beef consommé instead of the broth and melted gruyère cheese but otherwise followed the recipe. My family loved it. It was very flavorful. Surprised other reviewers found it to be bland. Definitely will make again.

    • Donna
      Jan 11, 2020

      My hubby

    • Marilyn Brown
      Oct 27, 2019

      This is the easiest and tastiest I’ve made for this type recipe

    • Jillian
      Feb 23, 2019

      The most bland soup I’ve ever encountered. No way this recipe won a contest. We LOVE French Onion soup and I’m always looking to find the best recipe. This , sadly, is not it. Don’t waste your time.

    • dilligaf4402
      Nov 11, 2018

      I added about 1/2 cup of red wine and extra Worcestershire and 2 cloves of minced garlic.

    • Tracy
      Mar 17, 2018

      No comment left

    • Pamela
      Jan 14, 2018

      No comment left

    • itsknotsew
      Dec 29, 2017

      I found this soup to be very tasteless. Maybe if the onion had been super caramelized as another reviewer suggested that would've helped. I even added 3 extra beef boullion cubes to the mix after tasting. It still needed something so I tried a touch of thyme and a couple of tsp of cider vinegar but neither of those did much either. Onions really burn my eyes so this was a double disappointment after the burning eyes from the onions. Will try another recipe as Jason's Deli has removed their onion soup from their line-up and it was so good!

    • BKinsey
      Jan 15, 2017

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