Traditional French Onion Soup

Traditional French Onion Soup on

– This traditional French onion soup recipe is simple and amazing. –

I’m a great lover of French onion soup, but for some reason, I’d never actually made it myself. I know, right? It seems silly, but really, it’s just one of those things I’d never gotten around to making.

A few weeks ago, I received a copy of Ruhlman’s Twenty by Michael Ruhlman, and the first recipe I flipped to was French onion soup. As luck would have it, I had a huge chunk of Gruyere in the refrigerator and a whole bag of sweet yellow onions had just arrived earlier in the week from my local CSA. I occasionally toy with the idea of fate, and that night, all signs pointed to my first time making French onion soup.

Before I go into the soup itself, I’d like to talk about the book, Ruhlman’s Twenty. As a food writer, Michael Ruhlman in a unique creature. He doesn’t write cookbooks, or at least not cookbooks in the way that most people consider them: a compendium of recipes. Instead, Michael produces books that help readers build skill and savvy, eschewing linear, recipe-type cooking for a more personal, thought-driven approach. He did this when he wrote The Elements of Cooking: Translating the Chef’s Craft for Every Kitchen, and when he wrote Ratio: The Simple Codes Behind the Craft of Everyday Cooking. And now, with Twenty, he’s done it again.

Obviously, there are recipes in Twenty. Otherwise, how would I be posting the below French onion soup? With this book, though, you’ll find a lot more. Twenty encourages something that a lot of people are afraid of in the kitchen: thinking. So many Americans are terrified of cooking, believing they are unable to create their own dishes, which keeps then bound to recipes for the rest of their culinary lives. What Michael tries to teach his readers in his most recent book is the ability to break free of recipes, to play in the kitchen, and to embrace the creativity that should come with cooking.

Twenty is divided into 20 chapters, each outlining a technique that Michael believes is necessary for a confident home cook to master. The first thing you might notice is that his definition of “technique” is different from the standard. As he explains:

When you look at my list of techniques, you’ll notice that some appear to be ingredients rather than techniques. While they are ingredients, they are also tools, and the best tools have multiples uses. … Understanding all of the uses of a single ingredient is like pumping steroids into your cooking muscles.

So, then, butter is a tool. As is sugar. And the egg. They’re just as important as Twenty’s other, classically technique-driven chapters, such as braise, poach, and sauté. And in learning to use these tools and techniques, you will become a better cook.

It’s also worth mentioning that Michael’s wife, Donna Turner Ruhlman, has packed the book with valuable food photos that show you what you’re supposed to see when cooking. Twenty has gorgeous photos, sure, but they’re not doctored by some off-frame food fluffer. Donna’s photos are real, and they illustrate what you should be experiencing when you make a dish. In cookbooks that’s an unfortunate rarity, as many home cooks become discouraged when their finished product doesn’t live up to the sleek sheen of what they see printed next to the recipe they’re following.

So what’s the final word on Ruhlman’s Twenty? Get it. It will make a great Christmas gift for anyone who wants to learn to cook, or those that have earned some kitchen cred but want to take their skills closer to a level of mastery.

This recipe for traditional French onion soup is a perfect example of an impressive dish that really doesn’t take all that much work, as long as you’ve got a handle on a basic culinary skill – in this case, caramelizing onions. Rich and flavorful, this dish is about as simple as they come. While it takes a few hours to actually get to the eating part, the amount of actual work is minimal because the most time-consuming part is caramelizing the onions. If you’re unfamiliar with how to caramelize onions, check out this video.

Traditional French Onion Soup on

Photo by Donna Turner Ruhlman

5.0 from 2 reviews
Traditional French Onion Soup
Recipe type: Soup
Cuisine: French
Prep time: 
Cook time: 
Total time: 
This recipe for French onion soup is a perfect example of an impressive dish that really doesn’t take all that much work. Rich and flavorful, this soup is about as simple as they come. Yield: Serves 4 to 6
  • 1 tablespoon butter
  • 7 or 8 Spanish onions (7 to 8 pounds/3.2 to 3.6 kilograms), thinly sliced
  • Kosher salt
  • Freshly ground black pepper
  • 6 to 12 slices of baguette or any country-style bread (it’s best if they cover the width of your serving bowls)
  • 1/3 cup/75 milliliters sherry
  • Red or white wine vinegar (optional)
  • Red wine (optional)
  • 1/2 to 3/4 pound/225 to 340 grams Gruyère or Emmanthaler cheese, grated
  1. Use a large pot, with a capacity of about 7 1/2 quarts/7.1 liters, that will hold all the onions. An enameled cast-iron pot will provide the best surface. Place the pot over medium and melt the butter. Add the onions, sprinkle with 2 teaspoons salt, cover, and cook until the onions have heated through and started to steam. Uncover, reduce the heat to low, and cook, stirring occasionally (you should be able to leave the onions alone for an hour at a stretch once they’ve released their water). Season with several grinds of pepper.
  2. Preheat the oven to 200°F(95°C). Place the bread slices in the oven and let dry completely (you can leave the slices in the oven indefinitely, as the heat is not high enough to burn them).
  3. When the onions have completely cooked down, the water has cooked off, and the onions have turned amber—this will take several hours—add 6 cups/1.4 liters of water. Raise the heat to high and bring the soup to a simmer, then reduce the heat to low. Add the sherry. Taste and season with salt and pepper as needed. If the soup is too sweet, add some vinegar. If you would like a little more depth, add a splash of red wine. I like the onion-to-liquid ratio with 6 cups of water. But if you’d prefer a little more delicate soup, add 1 cup/240 milliliters water.
  4. Preheat the broiler/grill. Portion the soup into bowls, float the bread on top, cover with the cheese, and broil/grill until the cheese is melted and nicely browned. Serve immediately.

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Comments from other ninjas:

  1. kyleen says

    This looks delicious! I love French onion soup too, but I’ve only ever made it once. Slicing all those onions made me cry, so I never made it again. Of course, that was a couple years ago, so perhaps my eyes have built up resistance to the onion fumes…?

    • Chris J says

      It helps to keep the onions in the fridge before slicing. It reduces their eyeburn intensity. Ideally, you would serve this in a beef broth that has been stewing for hours, but alas….

      • steph says

        Also, people who wear contacts don’t seem to have a problem. I guess there’s at least one upside to needing corrective lenses. 😉

    • steph says

      Kyleen, I have a friend who’s really sensitive to onions, and she uses the slicing attachment on her food processor to slice them. Zip, zap, done!

  2. 2012 Christmas Camera Deals says

    Its actually a cool and helpful piece of info. I am satisfied that you shared this useful info with us. Please stay us informed like this. Thanks for sharing.


  1. […] pan, compliments of the kind folks at Sur la Table, has become my new favorite for frying chicken, caramelizing onions, and just about any other task that requires steady heat and a dependable cooking […]

  2. […] pan, compliments of the kind folks at Sur la Table, has become my new favorite for frying chicken, caramelizing onions, and just about any other task that requires steady heat and a dependable cooking […]