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Easy French Onion Soup with Beef Broth

November 25, 2019 by Madalaine 12 Comments

Jump to Recipe

Here’s a smashing good recipe for French Onion Soup with beef broth (thank you Firefly!).  This soup brings back so many memories, I couldn’t help veering off and indulging in a quick trip down memory lane.

easy French onion soup with beef broth

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A couple weeks ago the Firefly put its classic French Onion Soup back on the menu.  There are 2 significant reasons I love it as much as I do.  First of all, Niall makes this phenomenal French Onion Soup with beef broth.  This in itself makes it a rich dark robust soup that takes 3 days to reach its pinnacle of flavor… and that’s just the broth. easy French onion soup with beef broth

Then they caramelize the onions to perfection with a multitude of spices.  Right before it’s served it’s topped off with just the right blend of cheeses and garnished with minced parsley and garlic.

The croutons are made in house from the ciabatta bread they make nearly every day.  I should know, it was make favorite thing to make during my internship!

Making ciabatta during my internship at Firefly

Making ciabatta during my internship at Firefly

Needless to say, the Firefly French Onion Soup is beyond compare.

The Way Back Machine…

Really, the only soup that comes close is the Famous & Barr French Onion Soup from my childhood.  That’s the second reason I can’t get enough of it.  This soup throws me into the backseat of Marty McFly’s Delorian and locks the doors.

mother with lots of curly hair and daughter about 9 with messy short hair and glasses

Mom and I sometime in the late 70s when we would go to Famous & Barr for lunch.

When I was little, my mom would take me to the Famous & Barr department store restaurant.  She’d order ice tea, a salad with blue cheese dressing and we’d both have the French Onion Soup.  They’d bring it out in a mini crockpot with cheese melting down the sides.  It was all very grown up and I felt so sophisticated!

young girl (me) eating cream pie.

I was a little younger here. Always happiest when eating!

So many of our best memories are centered around the kitchen table, eating, and our favorite restaurants.  My first date with Jerry in Effingham was at the Firefly and our wedding reception was there too.

father and daughter dancing in the firefly grill

My dad literally twirling me around the dance floor at the Firefly at our wedding reception.

baby alia 6 months old

Alia (6 months old) and her big beautiful eyes never fail to get me!  Here’s a video with me and Alia having a blast in my kitchen.

With every bite of this French Onion Soup, I’m hit with wave after wave of nostalgia.  We’ve watched our kids grow up here…

2 kids at the firefly

2010 Carver (11) and his cousin Gianna (8) sharing a root beer at the Firefly

And we’ve celebrated most of their major mile stones here too.  My surprise 40th birthday, both of our girls’ Sweet 16 were celebrated on Firefly’s back porch,

McDaniel family on the porch at the firefly grill

Brianna’s Sweet 16 (From left: Carver, Jerry, Brianna, Me & Alexandria)

all high school and college graduations,

kids and grandma lined up on firefly porch

Alexandria’s college graduation. (From left: Adrianna, Grandma Imelda, Alexandria, Brianna, Carver, Nick & Drake)

Halloween Witchfests

Katie behind the bar at the firefly during witchfest

Katie behind the bar during Witchfest

the witches go all out in the most creative ways for Witchfest. Here are some Purple Rain witches

anniversaries

celebrating at the firefly grill

My parents’ 50th wedding anniversary dinner (from left: My mom Nancy, me, my dad Don, Jerry, Alexandria, Brianna Carver)

jerry and I at the firefly for our anniversary

Jerry and my 11th wedding anniversary

and most recently… Adam proposed to Alexandria here in the wine room.  ❤️

You can see why this soup and the Firefly are so nostalgic for me!

Firefly’s French Onion Soup Recipe (adapted for the home cook)

At the restaurant, they begin by making 140 pounds of beef broth.  This broth is the heart and soul of the soup.  It slowly simmers and reduces down for 2-3 days.  Everyone in the back of the house loves these days because the aroma is simply heavenly.

When it’s time to start the soup, they start by bringing in 80 pounds of onions and 2 pounds of garlic.  The recipe below is pared down from the vast amount the Firefly makes to 12-16 servings for us mere mortals who want to attempt this at home.

Firefly’s French Onion Soup Recipe

  1. In a large dutch oven or large pot, melt 6 tablespoons of butter in 3 tablespoons olive oil.  Then add 4 cloves of minced garlic and simmer until softened.
    pot of sliced onions

    3 pounds of onions before caramelizing

    easy French onion soup with beef broth: onions caramelizing

    3 pounds of onions after they are cooked down.

  2. Add 3 pounds of thinly sliced onions and the following ingredients:
    • 1 tablespoon fresh thyme
    • 2 teaspoons dried oregano
    • 1/4 cup Dijon mustard
    • 1/4 cup maple syrup
    • 1/4 cup brown sugar
    • 1/2 teaspoon crushed red pepper
    • 1 teaspoon white pepper
    • 2 teaspoons kosher salt
    • 1 teaspoon ground black pepper
    • 1/3 cup Worcestershire sauce
    • 1 teaspoon garlic powder
    • 2 teaspoon onion powder
  3. Stir well, reduce heat if needed and let caramelize to a deep golden brown over medium to low heat.  flavorings for french onion soup with beef broth in pot
  4. Deglaze with 1 cup of dry sherry by bringing it to a boil.  Then reduce the heat and let simmer for 10 minutes. easy French onion soup with beef broth: flavorings for soup caramelizing
  5. Add 16 cups of store-bought: Beef Broth or beef stock OR make your own and let simmer for 2 hours.  Adjust seasoning with salt and pepper.
  6. To serve: ladle soup into bowls, top with large dried croutons or a slice of french bread.  Add a generous amount of provolone and gruyere cheese over the bread or croutons.  Broil in the oven until cheese is melted.
  7. Garnish with fresh minced garlic and fresh minced parsley. easy French onion soup with beef broth topped with cheese, parsley and garlic from the firefly grill effingham il

How does the Firefly’s French Onion Soup Compare with Julia Child’s?

First let’s be clear.  Julia Child is one of my absolute heroes and her recipes and instructions are spot on.  Her French Onion Soup is also made with beef broth and is very good.  With that said, with all due respect, it pales in comparison to Firefly’s version.

Why is it so much better?  Before writing this post I made Julia Child’s soupe a l’oignon gratineé from her Mastering the Art of French Cooking Vol. 1.  It’s a very good recipe that pulls the majority of its flavor from the slow caramelization process of the onions and the splash of cognac right before serving.  pot of french onion soup with beef broth on stove simmering

The Firefly’s version, on the other hand, is a delicate dance.  They’ve managed to balance caramel sweetness, savory depth of sherry, bright herbal notes of thyme and oregano and the soul of the soup~ the slow simmered beef bone broth.

Can you freeze French Onion Soup?

Oh yes! Oh Yes! Oh YES!  Please do!

This is not a difficult soup to make, in fact it’s a simple dump-it-all-in-the-pot kind of soup.  But it does take a ridiculous amount of time to make especially if you factor in the time to make your own beef broth.  If you do make it, I recommend doubling or tripling the amount and freezing it flat in zip lock bags.  It keeps beautifully for 4-5 months in the freezer. 

Can French Onion Soup be made ahead?

Yes, without a doubt.  It’s the nature of soup to get better and better for up to the 5th day.  After that, freeze anything that’s left.

What is the best cheese to use?

Traditionally Gruyere cheese is used to top French Onion Soup.  This is a French cheese very similar to Swiss cheese, but milder in taste.  They both create a somewhat adequate cheese pull.

If you like a substantial cheese pull, do what the Firefly does and blend in some provolone.  They also add a bit of grated parmesan to kick up the flavor too. easy French onion soup with beef broth topped with cheese, parsley and garlic from the firefly grill effingham il

What to do if your French Onion Soup is bland

First of all, make your French Onion Soup with purchased beef broth (OR make your own) instead of chicken or vegetable broth.  Beef stock or broth gives this soup a deeper complex flavor than the others.  Next, instead of reaching for a package of ultra salty onion soup mix, take a quick inventory of your pantry.  Look for the items listed in Step #2 above after the onions in the recipe.

Slice 2-3 onions and mince the garlic cloves.  Simmer them briefly in 4 tablespoons butter until the garlic is soft.

Then add the flavorings from Step #2 and simmer on low until it turns a deep rich dark golden brown.  Stir this into your French Onion Soup to enhance its flavor.

Madalaine eating a bowl of french onion soup with beef broth at the firefly

I just discovered Brodo Broth.  They have a really delicious beef bone broth I keep on hand if I don’t have any of my own broth handy.  They ship too!  Yay!

easy French onion soup with beef broth
4.8 from 5 votes
Print

French Onion Soup with Beef Broth

Course Soup
Cuisine French
Keyword gluten free, healthy
Prep Time 20 minutes
Cook Time 3 hours
Servings 16 cups
Calories 161.26 kcal
Author Madalaine

Ingredients

  • 6 tablespoons unsalted butter
  • 3 pounds onions sliced
  • 3 cloves garlic minced
  • 2 tablespoons fresh thyme
  • 2 teaspoons dried oregano
  • 1/4 cup dijon mustard
  • 1/4 cup maple syrup
  • 1/4 cup brown sugar
  • 2 teaspoons salt
  • 3 tablespoons olive oil
  • 1/2 teaspoon hot pepper flakes
  • 1/4 cup Worcestershire sauce
  • 1 teaspoon garlic powder
  • 2 teaspoon onion powder

Liquids

  • 1 cup dry sherry
  • 16 cups beef broth

Final Ingredients

  • 4 cups large croutons 1/4 cup per serving
  • 16 ounces provolone cheese 1 ounce per serving
  • 8 ounces parmesan cheese 1/2 ounce per serving
  • 1 cup fresh parsley chopped
  • 2 cloves garlic minced

Instructions

  1. In a large soup pot, add olive oil, butter and garlic. Simmer until garlic is soft but not brown.

  2. Add the rest of the ingredients (except for the broth and dry sherry) to the pot. Increase the heat to medium-high.

  3. Mix all the ingredients together until well combined. Slowly cook until the onions are very soft and a deep caramel golden brown. Stir occasionally.

  4. Deglaze the pot with dry the sherry. Then lower the heat and simmer for 10 minutes.

  5. Add the beef broth or stock and cook on low for 2 hours.

To Serve

  1. Ladle soup into bowls.

  2. Top with croutons and cover with provolone and parmesan cheeses.

  3. Place bowls on a baking sheet and broil in oven until cheese has melted.

  4. Mix the minced garlic and parsley together and garnish the soup with a small amount on top.

Nutrition Facts
French Onion Soup with Beef Broth
Amount Per Serving
Calories 161.26 Calories from Fat 69
% Daily Value*
Fat 7.68g12%
Saturated Fat 3.37g21%
Cholesterol 11.29mg4%
Sodium 1279.27mg56%
Potassium 321.02mg9%
Carbohydrates 17.67g6%
Fiber 1.75g7%
Sugar 11.67g13%
Protein 4.04g8%
Vitamin A 176.16IU4%
Vitamin C 8.55mg10%
Calcium 52.49mg5%
Iron 1.11mg6%
* Percent Daily Values are based on a 2000 calorie diet.

Filed Under: Firefly Grill, Gluten Free, Soups

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Reader Interactions

Comments

  1. Leslie Musch

    December 3, 2019 at 11:14 pm

    I love the recipes you are sharing on the website. Unfortunately I do not live close enough to visit the Firefly, —my favorite restaurant.

    Could you check the French onion soup recipe? Perhaps I missed it but do not see the amount of beef broth required?

    Have to say I love your inclusion of brown sugar. My mother was a fabulous cook & added that to tone down acids etc.

    Reply
    • Madalaine

      December 4, 2019 at 11:32 am

      Hi Leslie!

      Thank you so much for catching that! It’s 16 cups of beef broth. I’ll up date the recipe right away. 🙂

      When I was in culinary school, I was really surprised when our chef professors would add sugar to savory dishes and salt to sweet desserts. You’re so right! Adding just a touch of sugar balances out the acidity and salt (in desserts) keeps them from being overly sweet.

      Reply
  2. Surya

    June 19, 2020 at 4:57 am

    5 stars
    French onion soup is my favorite!

    Reply
  3. Carol; G

    June 25, 2020 at 6:51 am

    I love Onion Soup, your recipe sounds delicious I will give it a try. I usually make onion soup every Fall and make a huge container and freeze. The only part I cry over are all the onions ;I have to peel. But every tear adds to the yummy soup. Thanks

    Reply
  4. james j micallef

    October 6, 2021 at 11:30 am

    1/4 cup syrup was in the receipt. there are a lot of different syrups. Corn, assorted ones for breakfast foods. which one?

    Reply
    • Madalaine

      October 9, 2021 at 7:31 am

      Thanks James! I really appreciate you catching this. I changed it to maple syrup. However, if you don’t have that on hand, agave or honey would work well too.

      Reply
  5. rani

    October 8, 2021 at 6:39 pm

    one thing. In the instructions it says to put all of the rest of the ingredients except for the broth but then it’s not until the onions have caramelized that you put the sherry in. Well, I put it in twice because of this.

    Reply
    • Madalaine

      October 9, 2021 at 7:33 am

      Thank Rani! You are so right!!! Thank you so much for bringing this to my attention. I will make the corrections and make the instructions more clear. 😊

      Reply
  6. Lorie

    February 24, 2022 at 8:41 am

    After making this soup, can it be pressure canned?

    Reply
    • Madalaine

      February 28, 2022 at 7:46 am

      Hi Lorie!

      Great question! The simple answer is: No. You never want to pressure can dairy products because they are low acid and support the growth of Clostridium botulinum. Since this recipe calls for 6 tablespoons of butter it’s not safe to can.

      Reply
  7. Jean Faulk

    July 1, 2022 at 3:51 pm

    4 stars
    Your French onion soup recipe sounds wonderful! I intend to try it. However, when I found it I was looking for a beef stock recipe to make French onion soup. After your glowing statements about the 3-day beef stock the restaurant makes for this soup, I was so excited to see the stock recipe. It wasn’t included. The link for the stock/broth went to a sales page. Keep up the good work. I’m giving you four stars because there was no beef stock recipe.

    Reply
    • Madalaine

      July 19, 2022 at 9:34 am

      Hi Jean, thank you so much for catching this. I do like Brodo Broth very much, but when I have the time this is the recipe I use to make my own: https://lakesidetable.com/best-beef-bone-broth-recipe/ Let me know if you try it! 🙂

      Reply

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