French Onion Soup recipe (2024)

FAQs

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

A few sprigs of thyme and a bay leaf elevate the soup even more, but I take it a step further, adding a splash of fish sauce for complexity and depth—don't worry, it won't taste fishy—and a hit of cider vinegar to balance some of that oniony sweetness.

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 Is French Onion Soup? French onion soup, or soupe à l'oignon gratinée, is a classic French dish made with caramelized onions and beef stock or broth. The soup is topped with bread and cheese, then gratinéed to rich, gooey perfection. It's traditionally served in a ramekin or a ceramic crock with a handle.

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.

Wine is optional to deglaze the pan and add flavour to the soup. I recommend a dry white or red wine, such as a good quality Pinot Grigio/Gris, Sauv Blanc, Sémillon, Chardonnay, Merlot or Pinot Noir. Generally, if you can't drink it, don't cook with it.

Fix a bland onion soup by using supermarket broth and mild white onions, tasteless oil for sauteeing, stale plain white bread instead of croutons, and mild white cheese. Start by reducing the broth. Simmering out some water will intensify the flavor of the broth. Once you get it to the right point, add some salt.

Onions: You can use white, yellow or red onions for French onion soup. But to make it the classic way, you will need 5-6 large yellow onions, peeled and thinly sliced. Butter: The tastiest (French) way to caramelize those onions.

French onion soup is the ultimate comfort food. Onions get slowly cooked until sweet and caramelized, then simmered in rich broth until they're practically falling apart. To finish it off, toasted bread is added to give it that lovable crisp-gone-soggy texture and a generous amount of Gruyère cheese is melted on top.

The Onion Soup, a traditional and warming dish

It has even become a trendy dish that tourists are eager to try to experience French gastronomy. However, onion soup is in fact not part of French people's daily meals. It was originally meant to be eaten after a family reunion in the middle of the night to cure hangovers…

Get the oven to 400 degrees while you prepare the onions: Cut down through the poles of each onion, down through the root end into and through the stem end. Peel each half, keeping the flesh tethered at the root end. Slice 1/4-inch thick longways, pole-to-pole, using a mandolin if you have one.

How do you thicken French onion soup? ›

If you want to thicken your French onion soup, you can add a bit of flour. Combine a couple of tablespoons of flour with a teaspoon of salt and whisk in about a quarter cup of water. Bring the mixture to a boil, then reduce the heat and simmer for about 10 minutes, until thickened.

Sweet caramelized onions in a savory broth with a sherry wine vinegar gastrique, sea salt, topped with cheese and black pepper and sea salt croutons.

Add salt and pepper to taste, but don't be shy with the amounts. French onion soup requires a good amount of seasoning to bring out its true flavors. Enhance the taste with herbs and spices. Traditional herbs like thyme and bay leaves work exceptionally well in French onion soup.

On the other hand, you can not caramelize onions for too long – they will be bitter. Salting the onions at the beginning of cooking helps to soften them more quickly. Photo 2 – this is how the onions will look like after 15 minutes of cooking time. Photo 3 – this is how they look like after 30 minutes.

Always Add An Acid To Your Soups

Lemon is arguably even more essential in richer soups like wild mushroom and rice, curried split pea, or even white bean and bacon. This is because the delicate balance of flavor profiles requires that acidic, lemony zing to cut through the fats in the soup.

To improve the blandness of your French onion soup: add more seasoning, caramelize onions longer than usual, use high-quality beef broth, simmer for extended time and include melted cheese with crouton as toppings for added richness.

"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.

Some fresh rosemary or thyme brings a woody, peppery taste to the soup, complementing the umami flavor of the beef stock. With a splash of balsamic vinegar and green onions or fresh basil as a garnish, the canned soup is transformed from a grocery store original into a gourmet dish.

The caramelized onions are what give the soup its rich dark flavor and color, so don't skimp! Use a good quality beef broth. We use Better Than Bouillon to make our beef broth because it's extremely flavorful and contains a decent amount of salt, which seasons the soup well.