Easy French Onion Soup

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This Easy French Onion Soup recipe is the perfect saltiness and spice. Gooey cheese and a fantastic taste. This is the best ever classic french onion soup, homemade and delicious.

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I’ve been super busy trying to make restaurant favourites at home, just like this Easy Wonton Soup and Slow Cooker Three Cheese Broccoli Soup.

A perfect example of make at home perfection is my Olive Garden Copycat, Chicken Gnocchi Soup. Mmmm.

In the Winter months, I crave {and I mean crave} Classic French Onion Soup. Yet, I’m picky with this type of soup, and will only order it at certain restaurants, because it’s amazing how some can be so bland or just off in taste!

One of my goals for this year to ‘eat out’ less though, so I actually haven’t had my favourite soup all Winter. I know, the horror!

I find that some are too salty, others broths too weak, and so on. Let’s just say I appreciate {and devour} a great tasting baked onion soup.

This my friends is the best ever french onion soup, and you will not believe how easy it is to make, just like our Baked French Onion Chicken Recipe.

What I did was take crucial aspects of a french onion soup, and took out the extras. In fact, this is the best french onion soup recipe without wine.

Why You’ll Love This Recipe

Full of Flavor – By gently caramelizing the onions, this recipe brings out their natural sweetness, creating a luscious base for the broth. The interplay of sweet and savory layers makes each spoonful irresistibly satisfying.
Minimal Ingredients – Using just a handful of pantry staples ensures you experience authentic French onion soup without fuss, making it accessible for any skill level or weeknight craving. Also try our Baked French Onion Pork Chops!
Iconic – The toasted baguette slices and gooey melted cheese with the oniony broth offers the contrasting textures that so many love from a homemade french onion soup recipe.

Total Time: 50 Minutes

Serves: 4

Ingredients and Notes

Butter – I like to use unsalted butter so I can control the sodium content myself.
Onions – I think yellow onions are the best onions to use for this recipe, the same when making our French Onion Meatballs. If you prefer a more pungent flavor, you can blend in some white onions for complexity.
Condensed Beef Broth – Traditional French onion soup relies on beef broth to deliver a deep, meaty flavor. For a lighter or vegetarian version, use mushroom broth or vegetable stock instead, but keep in mind the taste will be milder.
Dried Thyme – Or you can use fresh thyme if you have it.
Cheese – I use both Gruyere cheese for the taste and swiss cheese because it melts so nicely and makes it gooey. Sometimes I also add a tad bot of Parmesan cheese as well, because, it’s cheese of course.
French Bread – you can use baguette slices, dried bread, or even dry sourdough bread. In a pinch you can use croutons as well.

As always, the full ingredients and recipe is on the printable recipe card at the end of this post.

Recipe Variations

Add red wine: A splash of dry red wine during caramelization adds depth and a subtle acidity to balance the sweetness of the onions.
Swap cheese types: Try melted different cheeses for variations in flavor and melt quality.
Vegetarian version: Use vegetable broth and skip traditional beef stock for a lighter, meat-free option while still enjoying rich caramelized onions and cheese.
Mushroom addition: Finely diced mushrooms cooked with the onions introduce an earthy flavor that complements the broth beautifully.
Added Flavor – Add some of our Homemade Onion Soup Mix for more of that onion taste with flavorful spices.

Tips for Success

Take your time caramelizing the onions – Patience is key when caramelizing onions; cook them over medium-low heat. Stir frequently and be careful not to rush or scorch them, as this slow transformation unlocks their natural sweetness and complexity.
Toast the bread lightly before placing it on the soup – Lightly toasting the baguette slices before adding them to the soup prevents them from becoming overly soggy too quickly in the broth. It also helps hold up the melted cheese perfectly.
Grate the Gruyère for even melting – Grating your cheese instead of slicing it thinly allows it to melt more evenly and quickly, forming that luscious, gooey layer that makes the soup memorable.
Season thoughtfully – Towards the end of cooking, taste your broth and season with salt and freshly ground black pepper. The slow caramelization concentrates the flavor, so seasoning at the end prevents overdoing it.
Use a baking pan – I bake my soup dishes on a baking sheet in case some bubbles over.

How to Make Easy French Onion Soup

Place a large skillet over medium low heat (or medium heat) and melt butter. You can also use olive oil or even white wine if necessary.
Saute onion for about 8 minutes until transparent in colour.
In a medium saucepan combine beef broth, sautéed onion along with pepper and thyme and bring to a boil.
Reduce heat, cover, and simmer for 30 minutes.
Under the oven broiler, toast French bread on both sides until crispy.
Pour or ladle soup into 4 individual soup bowls (oven-safe bowls) and float desired amount of sliced toasted French bread in each.
Sprinkle cheeses on top of each – the more, the merrier!
Broil in the oven at 375 degrees F. It’ll be done when the cheese melts, and the edges sticking to the bowls are a golden brown. Those browned bits are the best part, in my opinion.
Enjoy!

What to Serve with French Onion Soup

You can enjoy french onion soup alone as an appetizer, small meal, or a winter warm up. Yet if you need some sides to make it a bigger meal, here are some suggestions:

Simple Green Salad
A crisp, refreshing salad dressed with a light vinaigrette balances the richness of the soup and brings a fresh contrast. An Easy Broccoli Salad will be a nice compliment too.

Crusty Bread
Additional crusty bread or cheesy toast on the side is perfect for dipping in the silky broth beyond the toasted crostini. We have an Air Fryer Garlic Toast recipe that you’ll love.

Savory Tart
A slice of savory cheese or vegetable tart or simple quiche complements the flavors without overpowering the soup’s delicate nuances.

Roasted Root Vegetables
Earthy roasted carrots, parsnips, Air Fryer Parmesan Asparagus or beets provide a hearty side that pairs well with French onion soup on a chilly evening.

Freezing & Storing Leftovers

Freezing:
French onion soup freezes well without the bread and cheese topping. Store the cooled soup in airtight containers or freezer bags for up to 3 months. When ready to serve, thaw overnight in the fridge and add fresh toasted bread and cheese before broiling.

Storing:
Keep soup refrigerated in an airtight container for up to 3-4 days. Reheat gently on the stove over low heat to preserve texture, then add bread and cheese before serving.

A close up of french onion soup on a spoon.

For a recipe that combines the classic soup with a heart comforting roast, try our French Onion Pot Roast.

I just love making homemade soups and stews. Speaking of, you also NEED to try this Creamy Chicken Stew. YUM!

Recipe FAQ

What is the best cheese for french onion soup?

Now, these cheese you choose does matter when making this simple soup. I think that Gruyere cheese is best!
Yet, sometimes I get super lazy and just use mozzarella cheese, which you can do and the result is a nice soup.
Yet, choosing that sharper cheese does result in a different and fantastic flavour, so keep that in mind and try to stick with Gruyere.

What kind of bread to use for french onion soup?

I try and get a french loaf for the bread in my french onion soup.
Day old is best, as you want a crusty bread.
Yet in a pinch, you can toast any bread and it’ll work, especially those heel pieces. I do think french is best, yet I’d use any just to have some at all.

More Soup Recipes

Also, be sure to check out all our Best Soup Recipes.

This real simple onion soup recipe is the perfect saltiness and spice. Gooey cheese and a fantastic taste. Every spoonful leaves you wanting more.

This is my go-to soup when I need a bowl, no matter the time of year.

If you’ve tried this Easy French Onion Soup or any other recipe on my blog please let me know how it went in the comments below. I love hearing from you. Finally, consider leaving a 🌟 star rating while you’re here. Thanks!