Easy French Onion Soup Recipe | The Gracious Pantry (2024)

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This easy French onion soup is perfect for chilly evenings!

Give some of my other soups a try too, like this wonderful Italian Navy Bean soup, this delicious Minestrone, or this easy-to-make Miso soup!

Easy French Onion Soup Recipe | The Gracious Pantry (1)

Easy French Onion Soup

French onion soup is a simple, delicious soup that is fairly easy to make. It takes a little time, but the process is super simple. Let’s dive in.

French Onion Soup Ingredients

The two critical components of this classic soup are the broth and the onions.

Beef broth – You can make this from scratch or buy it. However, either way, you’ll want to be sure that it’s flavorful and delicious when you taste it on its own. A bad broth will make a bad soup. So make sure you season your broth well before proceeding with making this soup.

Onions – White or yellow onions seem to work best here. The important thing is to caramelize them well. It’s not a step you want to skip, because part of the flavor of this soup is the sweetness that comes from caramelizing the onions.

Balsamic vinegar – I use this to replace the flavor of wine. If you would rather make this with wine, a nice white wine will work well here. But if you opt for the vinegar like me, you can also add a tiny bit of sweetener to the pot (about 1 tsp.) to really help mimic the wine flavor. This isn’t necessary, but it’s tasty. Use a good quality balsamic. If you only have the cheap stuff (I buy it too, most of us do!), pour some in a pot and cook it down by half to get a richer balsamic vinegar.

Olive oil – I have little patience some days, so I sometimes end up sautéing my onions in oil. But the proper way to do it is to cook them slowly starting with some butter, and adding wine or water until they are well caramelized. So only use the oil if you have no patience like me. The flavor of the soup won’t be as rich or have as many sweet undertones, but it works in a pinch.

Cheese – I personally love using parmesan cheese or mozzarella. But most people will swear by Gruyere cheese, which is a mild Swiss. I have tried regular Swiss, and I don’t recommend it.

Bread – For this, you can slice and toast a baguette, or you can use croutons. Either will work. I just find it easier to make croutons from whole-grain bread. Whole-grain baguettes are not easy to find.

How To Make Easy French Onion Soup

First, you’ll want to peel and slice your onions (see tips for cutting below). Use a nice big cutting board for this. And if onions make you cry, store them in the fridge for a few days before cutting them. If you have a gas stove, you can also cut near the open flame to help burn off the fumes. Just don’t get so close that you burn yourself!

To caramelize your onions, remember to keep your heat low. Caramelizing onions is a slow process. It’s not hard, it just takes some time. You’ll want to start off with melting a

  • Clean and slice your onions.
  • In a soup pot, sauté your onions in the olive oil until they are soft and dark brown with caramelization.
  • Add beef broth and vinegar to the pot and boil until the liquid has cooked down by approximately half.
  • Serve sprinkled with approximately 2 tbsp. parmesan cheese sprinkled over the top.
  • If you want croutons, you can make a few whole-grain croutons at home. See the link above.

Substitutions

  • Vegan French Onion Soup – If you are vegan or vegetarian, this soup is quite delicious made with vegetable broth. Omit the cheese and make sure you use vegan bread or croutons.
  • Gluten-Free French Onion Soup – Make sure your broth is gluten-free (most are, but not all) and use a gluten-free bread or crouton.
  • Dairy-Free French Onion Soup – This soup is quite good without the cheese! Just make sure that if you use bread or croutons, they are also dairy-free. Some are made with cheese or milk products in the seasoning.
  • Oil-Free French Onion Soup – If oils are an issue, feel free to substitute butter or ghee in the same amounts where oil is called for.

What Are The Best Onions To Use For French Onion Soup?

The best onions to use for French onion soup are yellow onions. Caramelize them well in some butter, with white wine or water until they are a deep caramel brown. Then proceed with making your soup.

How Do You Cut Onions For French Onion Soup?

Cut the onion in half, from root end to end. Take off the top skin layer. Lay it flat on your cutting board, and slice it in the other direction, across the half of the onion. (See video link below)

Why Is It Called French Onion Soup?

This soup originated in Paris in the 18th century. It is traditionally made of beef broth, caramelized onions, herbs, and often some sort of wine.

How Long Does HOmemade French Onion Soup Last?

It will keep in the fridge for up to 4 days. If you don’t put the cheese or croutons in it, you can freeze it for up to 6 months.

What To Serve With French Onion Soup

This delicious soup goes with many different dishes. Here are some ideas to get you started:

Sides:

  • Green salad
  • Garlic bread

As a side to:

  • Pasta
  • Panini
  • Sandwich
  • Steak
  • Chicken
  • Fish

Making In Advance, Storing And Freezing

Making French Onion Soup In Advance – French onion soup can be made up to two days in advance. Make the soup, but don’t bother with bread/croutons or cheese until you are ready to heat and serve it.

Storing French Onion Soup – Keep this soup in the fridge for up to three or four days.

Freezing French Onion Soup – You can freeze French onion soup, without the bread/croutons or cheese, for up to 6 months.

To see how to slice the onions properly, check out this video on youtube.

More Healthy Soup Recipes

  • Bison Stew
  • German Lentil Soup
  • 3 Bean Soup

Recipes Used

  • Crouton Recipe

Easy French Onion Soup Recipe | The Gracious Pantry (3)

Easy French Onion Soup

Note: Slice your onions thin. It makes the texture of the soup far more enjoyable.

2.90 from 20 votes

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Course: Soup

Cuisine: French

Prep Time: 20 minutes minutes

Cook Time: 30 minutes minutes

Total Time: 50 minutes minutes

Servings: 5 servings

Calories: 58kcal

Author: Tiffany McCauley

Ingredients

  • 4 cups beef broth
  • 2 medium onions
  • 1 tsp. balsamic vinegar
  • 1 tbsp. olive oil
  • parmesan cheese (optional for topping)

US CustomaryMetric

Instructions

  • Clean and slice your onions.

  • In a soup pot, sauté your onions in the olive oil until they are soft and dark brown with caramelization.

  • Add beef broth and vinegar to the pot and boil until the liquid has cooked down by approximately half.

  • Serve sprinkled with approximately 2 tbsp. parmesan cheese sprinkled over the top.

  • If you want croutons, you can make a few whole grain croutons at home. See link above.

Notes

Please note that the nutrition data below is a ballpark figure. Exact data is not possible. Data does not include optional ingredients.

Nutrition

Serving: 1cup | Calories: 58kcal | Carbohydrates: 4g | Protein: 2g | Fat: 3g | Sodium: 716mg | Potassium: 167mg | Sugar: 2g | Vitamin C: 3.2mg | Calcium: 22mg | Iron: 0.4mg

Recipe from the Gracious Pantry archives, originally posted 11/1/10.

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Easy French Onion Soup Recipe | The Gracious Pantry (2024)

FAQs

How do you deepen the flavor of French onion soup? ›

My personal go-tos include worcestershire sauce, fish sauce, and brandy. Each deepens the flavor of french onion soup. Balsamic vinegar and soy sauce are other great options.

How do you make French onion soup less bland? ›

It removes the need to stir the onions as they cook! Deepen the flavor: Add a splash of vinegar or Worcestershire to give the soup a little oomph. If it's not sweet enough, add a pinch of sugar. Add leftover meat: For a really hearty soup, incorporate leftover meat from a pot roast or chuck roast recipe.

Why do you put baking soda in French onion soup? ›

The caramelized onions for this soup cook more quickly due to a pinch of baking soda but still have that deep, slow-cooked flavor. Topping the soup with hot, cheesy toasts prepared while the soup simmers, eliminates the need to bake the soup in specialty French onion soup bowls.

What is the difference between French onion soup and regular onion soup? ›

What is the Difference Between Onion Soup and French Onion Soup? French onion soup is always made with beef stock. Other onion soups can be made with chicken, vegetable, or beef stock. Additionally, French onion soup typically contains wine or sherry, which isn't typical or necessary in other onion soups.

What can I add to soup for depth of flavor? ›

"If your broth is lacking in savory richness, try adding roasted onion, tomato paste, mushrooms, seaweed, soy sauce, or miso. These ingredients add umami flavor and depth to broth," she says.

How do you doctor up canned French onion soup? ›

Infusing the soup with a richer taste is as easy as quickly sauteing crushed garlic before pouring the soup in. Some soft, buttery garlic sauteed in earthy olive oil is the perfect addition to enrich canned French onion soup.

Is French onion soup for the poor? ›

Although onions were plentiful and affordable by the poor, a medieval recipe in Le Ménagier de Paris, published in 1393, includes among its ingredients ginger and saffron – rare and expensive spices – making this version of the dish one for wealthy households.

Why does my French onion soup taste bad? ›

Burned onions – result in bitter soup. Be careful to not burn the onions/cook them until they are too dark in color – you don't really need to cook them until they are dark brown – golden brown/light brown is enough.

Why do you add flour to French onion soup? ›

Onion soup, at its very essence, is nothing more than onions and water boiled together. Period, done, finished, everything added from that point on is pure opinion. Caramelizing the onions brings out sugars, and makes a more luxurious silky and sweet soup, adding flour gently thickens and provides body.

Should you caramelize onions for French onion soup? ›

Caramelizing the onions slowly in butter until they're rich golden brown (but not so dark as to taste bitter) produces the sweetest, most flavorful results. If you don't have homemade beef stock, the recipe's suggested homemade or store-bought chicken stock substitutions are better than most store-bought beef stock.

Why do you put lemon juice in soup? ›

But as the publication explains, lemon juice adds more than just tartness. For chicken soup in particular, lemon juice balances out the more rich and savory flavors, adding an overall brightness to the taste.

Why is my French onion soup sour? ›

It might be because of the stock or that you used onions that has sour flavor such as white onions.

What broth is French onion soup made of? ›

This soup traditionally is made with beef stock, though sometimes a good beef stock can be hard to come by and expensive to make. If you use boxed stock, taste it first! If you don't like the taste, don't use it. (If you cook a lot of beef or beef roasts, save the scraps and freeze them to make a stock with later.)

Why is my French onion soup too sweet? ›

Onions are very sweet, especially when they're cooked down, and that is the main purpose of onion soup. The sweetness can be balanced by adding some dry wine or vinegar. Taste as you go and don't overdo it. A little salt will balance it too, but don't forget that the grated cheese you will top it with is salty.

Why did Panera change their French onion soup? ›

Panera Bread is working to regain customers' loyalty in 2020 with the reintroduction of its fan-favorite French Onion Soup. 2019 was a year of food news for Panera, not all of it positive. First, it removed the French Onion Soup, a staple on the menu for over 20 years, to make room for seasonal menu items in June.

How do you make soup taste stronger? ›

Use fresh vegetables, high-quality meats or broth, and fresh herbs to add depth of flavor. Add acidity: A squeeze of lemon or lime juice, a dash of vinegar, or a splash of wine can brighten the flavors of a soup and make it taste more complex.

How do you get the depth of flavor in vegetable soup? ›

A squeeze of citrus, a dollop of yogurt or a drizzle of cream, a dusting of cheese or a good chile powder, a sprinkling of some herbs or croutons — all can take a perfectly fine soup into the realm of the delectable. Even a spiral of good olive oil to finish and some coarse sea salt can do wonders.

How do you make soup darker? ›

the traditional method for darkening broth, stock, gravy, and bouillon was to use burnt sugar. Just a little bit will do, depending on how large of a batch you are making. Heat sugar and 1 Tablespoon water over medium heat, stirring constantly until the sugar is dissolved.

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