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French Onion Soup

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French Onion Soup is such a classic soup recipe. This French Onion Soup Recipe is perfect for a simple weeknight family meal. You might think no one would eat a bowl full of onions, but this robust soup will have them coming back for more and requesting it often.

Looking for other soup recipes your fam will love? Check out my recipes for: Chicken and Dumplings Soup, Cauliflower Cheese Soup, Chicken Tortilla Soup or Easy Tomato Soup.

white bowl of onion soup topped with bread and a slice of Swiss cheese
Image by Sarah Alvord

French Onion Soup

The hardest part about this French Onion Soup recipe is waiting for it to be done!! Soups in all of their forms are one of our favorite go to meals for any night of the week. All of my soup recipes are easy to make and come together quick!

Some of our favorites are Broccoli Potato Cheese Soup and Creamy Chicken and Rice Soup. Plus, soups are usually inexpensive to make and will feed a lot of people.

This easy recipe for French Onion Soup does not call for any alcohol or cooking wine, I just don’t cook with alcohol and found a way to make this delicious without it.

This recipe is super easy to prep, the thing that takes time is cooking the onions and then allowing the soup to simmer until it is ready to serve.

We love onion soup because it is truly so affordable to make and our favorite part is the crunchy garlic bread and melted Swiss cheese on top.

Ingredients for French Onion Soup

This is just a visual of the ingredients, for measurements, scroll down to the recipe card at the bottom of this post.

onions, salt, pepper, sugar, Worcestershire, butter, thyme, rosemary, bay leaves, onion and swiss cheese

Ingredient tips:

  • Onions: The best onion for French Onion Soup (in my opinion) is a simple yellow onion. These are the best for caramelizing and have a natural sweetness when they are cooked. They won’t be overpowering in flavor either. If you must, you can substitute white onion. I wouldn’t suggest red onions, unless you are going to mix them with either white or yellow as they can be a bit bitter.
  • Garlic: I am generally a fan of the pre-minced garlic that you can purchase, but for this recipe I highly suggest buying fresh garlic and using a garlic press to add it to this soup. It adds a whole other level of flavor to the soup as well as to the bread slices.
  • Sugar: Don’t skip this. The sugar is key in helping the onions to caramelize to the beautiful golden brown.
  • Beef Broth: Homemade, store-bought, bouillon, or beef base. I personally prefer the flavor from beef base, it is just a little more rich.

How to make French Onion Soup

  1. Start by peeling and thinly slicing the onions. You will need about 6 medium sized onions for this recipe. This comes out to about 10 cups of sliced onions. Be sure to slice them all about the same thickness.
  2. Place the onions and 2 tablespoons of olive oil and butter into a large 6-8 quart pot over medium heat.
sliced yellow onions in a big black pot
  1. Cook the onions over medium heat, stirring occasionally until they are translucent and softened. This can take 20-25 minutes. At this point in the recipe, you will add an additional tablespoon of both olive oil and butter as well as the sugar and sea salt.
  2. Continue to cook and stir until the onions become a golden brown color, about another 10 minutes. Add in the garlic and cook until fragrant, about 30 seconds.
caramelized onions in a pot
  1. Pour in the beef broth, black pepper, Worcestershire sauce, rosemary, thyme and bay leaves. Bring the soup to a boil, then turn the heat down to low. Cover the soup and allow to simmer for 30 minutes.
  2. While the soup is simmering, slice a baguette into thin slices. Brush each side of the slice with olive oil, then broil for 1-2 minutes each side until golden brown. Remove from the oven and brush with a fresh garlic clove.
onion soup in a big black pot
  1. When the soup is done, remove the bay leaves and any other spices, fill a soup bowl with the onion soup, and place 2 garlic bread slices on top of the soup. Top the soup with a slice of Swiss cheese.
  2. If you have oven safe bowls, place the bowl on a baking sheet and under the broiler for 2-3 minutes, until the cheese is golden and bubbly. Another option is to use a kitchen torch to melt and toast the cheese.
onion soup topped with Swiss cheese and bread slices

How to store Leftover French Onion Soup

Leftover French Onion Soup can be easily stored in the refrigerator or frozen in the freezer.

  • Refrigerator: Leftover onion soup can be stored in the refrigerator for up to 4 days—reheat in a pot over medium heat, or in individual portions in the microwave.
  • Freezer: To freeze French Onion soup, place it in individual portions in zip top bags or air-tight containers. It is much easier to thaw and reheat individual portions of this soup. Keep in the freezer for up to 4 months.
spoon scooping up some onion soup

What to Serve With Easy French Onion Soup

cast iron pan filled with cornbread

Cast Iron Cornbread

round loaf of bread in parchment paper

Dutch Oven Bread

cheddar bay biscuits on a wooden platter

Cheddar Biscuits

Easy Homemade Biscuits

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bowl of french onion soup topped with Swiss cheese and crusty bread
Print Recipe
5 from 4 votes

French Onion Soup

French Onion Soup is a rich soup made from yellow onions that have been caramelized and simmered in beef broth with simple spices. Top the soup with crusty bread and Swiss cheese for a simple meal.
Prep Time10 minutes
Cook Time1 hour 10 minutes
Total Time1 hour 20 minutes
Servings: 6
Calories: 390kcal

Ingredients

  • 6 yellow onions, thinly sliced
  • 3 tablespoons olive oil
  • 3 tablespoons butter
  • 1 tablespoon sugar
  • 1 1/2 teaspoons sea salt
  • 2 garlic cloves, minced
  • 8 cups beef broth
  • 1 tablespoon Worcestershire sauce
  • 2 sprigs rosemary
  • 2 sprigs thyme
  • 2 bay leaves
  • 1/2 teaspoon black pepper
  • 6 slices Swiss cheese

For the bread

  • 1 loaf baguette
  • 1-2 garlic cloves
  • 1-2 tablespoons olive oil

Instructions

  • Start by peeling and thinly slicing the onions. Be sure to slice them all about the same thickness. Place the onions and 2 tablespoons of olive oil and 2 tablespoons butter into a large 6-8 quart pot over medium heat.
  • Cook the onions over medium heat, stirring occasionally until they are translucent and softened. This will take about 20-25 minutes.
  • At this point you will add an additional tablespoon of both olive oil and butter as well as the sugar and sea salt. Continue to cook and stir until the onions become a golden brown color. About another 10 minutes.
  • Add in the garlic and cook and stir until fragrant, about 30 seconds.
  • Pour in the beef broth, black pepper, Worcestershire sauce, rosemary, thyme and bay leaves.
  • Bring the soup to a boil, then turn the heat down to low. Cover the soup and allow to simmer for 30 minutes.
  • When the soup is done, remove the bay leaves and any other spices, fill a soup bowl with the onion soup and place 2 garlic bread slices on top of the soup. Top the soup with a slice of Swiss cheese. If you have oven safe bowls, place the bowl on a baking sheet and under the broiler for 2-3 minutes, until the cheese is golden and bubbly. Another option is to use a kitchen torch to melt and toast the cheese.

For the bread

  • While the soup is simmering, slice a baguette into thin slices. Brush each side of the slice with olive oil, then place under the broiler for 1-2 minutes each side until golden brown. Remove from the oven and rub a peeled garlic clove on the bread on both sides.

Nutrition

Calories: 390kcal | Carbohydrates: 35g | Protein: 13g | Fat: 22g | Saturated Fat: 9g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 10g | Trans Fat: 1g | Cholesterol: 31mg | Sodium: 2143mg | Potassium: 428mg | Fiber: 3g | Sugar: 8g | Vitamin A: 340IU | Vitamin C: 10mg | Calcium: 222mg | Iron: 2mg
Course: Main Course, Soup
Cuisine: Soup
Keyword: French Onion Soup
Tried this recipe?Please Rate and Leave A Comment Below!

French Onion Soup is such a classic soup. This French Onion Soup Recipe is perfect for a simple weeknight family meal. You might think no one would eat a bowl full of onions, but this robust soup will have them coming back for more and requesting it often.

slices of bread in front of a bowl of onion soup

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5 from 4 votes (4 ratings without comment)

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