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Julia Child’s French Onion Soup Recipe (With a Genius Serving Tip)

Julia Child’s French onion soup recipe is a classic, but I have made one tiny change which I think makes the eating and enjoying of the soup much easier. Sorry Julia, but I would guess, even she would approve!

French onion soup Julia Child style

I recently went to Santa Barbara and had lunch with my mother and daughter at a lovely little French restaurant on State Street.

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I ordered the French onion soup, which I haven’t had or made in a long time, and it made me think how deplorable that was. I adore French onion soup and everything about it: the beefy broth, the glorious caramelized onions, and of course, the incredibly tasty, melty Gruyère cheese on the crispy, crusty, soup-soaked bread! What’s not to love?

text box with quote: As good as the best restaurants! "Wonderful and full of flavor. Thank you so much."-Doug

French onion soup Julia Child style

So as I often do, when I came home, it went on the “to-make” list. And I made it. And it was awesome.

Love onions? Try this delicious caramelized onion, pancetta and feta cheese tart!

caramelized onion, feta and pancetta tart

As the title suggests, Julia Child’s French onion soup isn’t a recipe I followed to the letter. Although Julia claims if you don’t use homemade beef stock, you may as well buy onion soup, I say you’re still better off making the soup at home. Just use whatever stock you have on hand, as long as it’s good quality.

Homemade (red lentil) soup is never a bad idea.

Scottish Red Lentil Soup in a red bowl

The Problem with French Onion Soup

If you’re like me, you probably don’t like fighting with full-sized pieces of  bread covered in melted cheese floating in your soup, right? So I suggest bite-sized toasted pieces of bread instead–they are much more manageable.

Another classic French dish: gratin dauphinois (potatoes au gratin)

gratin dauphinois with lamb

How do you make Julia Child’s French Onion Soup?

This is not a five minute soup, so just be prepared to caramelize some onions for a good 45 minutes or so. The rest of the soup making process is easy, and the result is truly worth the time and effort. See the ingredient list and step by step directions below.

making French onion soup Julia Child style

How to Make Julia Child’s French Onion Soup
with Step by Step Directions (Almost Like Julia’s)

adapted from Mastering the Art of French Cooking by Julia Child

serves 6-8      FULL PRINTABLE RECIPE BELOW

Ingredients

  • yellow onions
  • butter
  • olive oil
  • Kosher salt or sea salt
  • sugar
  • flour
  • beef stock (or water with beef bouillon)
  • dry white wine
  • cognac or brandy (optional)
  • French, Italian or rustic loaf bread
  • Gruyere cheese

Special equipment: oven safe bowls (I found some inexpensive ones at Home Goods which were made in Italy, however, these are the only bowls I found on Amazon that weren’t made in China).

Caramelize the Onions

In a large, heavy bottomed Dutch oven (☚ this is the one I have), add the butter and oil, then the sliced onions. Cook slowly, with the lid on, for about 15 minutes. Stir occasionally.


making French onion soup Julia Child style

Remove the lid, turn the heat up to medium, add the salt and sugar, and stir often for about 40 minutes (mine took 45), until the onions are a deep golden brown. If anyone tells you that you can caramelize onions in 15 minutes, they don’t know anything about caramelizing onions.

caramelizing onions in a pot

Finish Making the French Onion Soup

Next, add the flour and continue to cook and stir for another 3 or 4 minutes.

adding flour to caramelized onions

Remove from heat and add the stock/water/bouillon and wine.

caramelized onions in a pot with alcohol

Add salt and pepper to taste and return to the cooktop, and simmer for an additional 30 to 40 minutes. Just before the soup is ready, preheat the oven to 350 degrees F.

Prepare the Soup for Serving

When the soup is ready, add the brandy/Cognac, if using and check for seasoning; ladle it into ovenproof bowls, and top with the cubes of toasted bread or even croutons.

adding bread cubes to soup

Now, don’t go and ruin this lovely French onion soup by using poor quality cheese! Use the best, real Gruyere from Switzerland, please. Julia and I agree on this one! However, if you can’t find proper Gruyere, or can’t afford it, you can substitute Swiss cheese, but even better, try Jarlsberg.

Le Gruyere cheese

Sprinkle the cheese on top of the toast, as desired. I like everything in moderation (the cheese on the bowl in the photo above, from the restaurant in Santa Barbara was a bit too much for me) so this might be a wimpy amount of cheese for you; if so, add more.

French onion soup Julia Child style

Repeat to make 6 bowls, then place them on a tray and put into the center of the oven for about 15 minutes.

Melt the Gruyère Cheese on top of the Soup

Finally, reset the oven to broil (grill) and move the tray of bowls closer to the top to get a nice golden color on the cheese, which should be watched carefully as it can burn quickly.

Serve immediately and enjoy!

French onion soup Julia Child style
French onion soup Julia Child style

As I said, French onion soup made Julia Child style is well worth the effort!

French onion soup Julia Child style

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Why not make some profiteroles for dessert?

profiteroles on a plate

The recipe for Julia Child’s French Onion Soup can be printed here~

French Onion Soup ~ the way Julia made it, sort of...

Servings: 6
Prep Time: 10 minutes
Cook Time: 1 hour 30 minutes
Total Time: 1 hour 40 minutes
Julia Child's recipe for French Onion Soup with a couple of itty-bitty change from me :)
4.9 from 88 votes

Special Equipment

  • 1 heavy bottomed Dutch oven

Ingredients

  • 3 Tbsp butter
  • 1 Tbsp olive oil
  • 5 cups yellow onions (thinly sliced, do not use sweet onions)
  • 1 tsp Kosher salt (added to the onions in the pot)
  • ¼ tsp sugar (added to the onions in the pot)
  • 3 Tbsp flour
  • 2 quarts beef stock (or water with beef Better Than Bouillon)
  • 4 oz dry white wine
  • ½ tsp Kosher salt (to taste)
  • tsp pepper (to taste)
  • 1 Tbsp Cognac (or brandy- optional, Julia's recipe has 3 Tbsp, but I prefer less)
  • French bread (Italian or rustic bread, cut into bite sized cubes, toasted or croutons)
  • 1 ½ cups Swiss Gruyere (grated - if you can't find it, use Swiss cheese or even better, Jarlsberg)

Instructions

  • In a large, heavy-bottomed Dutch oven, add the butter and oil, then the sliced onions. Cook slowly, with the lid on, for about 15 minutes. Stir occasionally.
  • Remove the lid, turn the heat up to medium, add the salt and sugar, and stir often for about 40 minutes (mine took 45 min), until the onions are a deep golden brown.
  • Add the flour and continue to cook and stir for another 3 or 4 minutes. Remove from heat and add the stock/water/bouillon and wine.
  • Add salt and pepper to taste and return to the cooktop, and simmer for an additional 30 to 40 minutes. Just before the soup is ready, preheat the oven to 350℉/ 175℃.
  • When the soup is ready, add the brandy/Cognac, if using and check for seasoning; ladle it into ovenproof bowls, and top with the cubes of toasted bread.
  • Use the best, real Gruyere from Switzerland, if you possibly can. Sprinkle the cheese on top of the toast, as desired. I like everything in moderation (the cheese on the bowl in the photo above, from the restaurant in Santa Barbara was a bit too much for me) so this might be a wimpy amount of cheese for you; if so, add more.
  • Repeat to make 6 bowls, then place them on a tray and put into the center of the oven for about 15 minutes.
  • Reset the oven to broil (grill) and move the tray of bowls closer to the top to get a nice golden color on the cheese, which should be watched carefully as it can burn quickly.
  • Serve immediately.

Notes

  • The results of this soup really depend on the quality of ingredients, most importantly, the cheese and bread. Try to find Gruyère from Switzerland, if possible.

Nutrition

Serving: 1 bowl | Calories: 482kcal | Carbohydrates: 48g | Protein: 24g | Fat: 20g | Saturated Fat: 11g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 7g | Trans Fat: 0.2g | Cholesterol: 51mg | Sodium: 1814mg | Potassium: 887mg | Fiber: 4g | Sugar: 10g | Vitamin A: 491IU | Vitamin C: 10mg | Calcium: 421mg | Iron: 4mg

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Julia Child’s French Onion Soup Recipe

4.88 from 88 votes (88 ratings without comment)

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