Best French Onion Soup Recipe, Whats Cooking America (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.

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.

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.

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.

Add acidic ingredients.

Foods that have a great deal of acidity, like lemon juice, vinegar, white wine, and tomato puree, can help liven up the flavor of bland-tasting bone and other broths. "The acidity of these ingredients works to complement and enhance the broth's flavors, not mask it.

Herbs and sources add flavor, aroma, and intensity to the soup broth. You can pick fresh or dried herbs like basil for tomato-based soups or fresh parsley for clear broths. You may also add more spices like turmeric, ground ginger, ground paprika, or nutmeg for a touch of spice and color to your soup broth.

The key to good French onion soup is to cook the onions so long that they threaten to melt into a viscous, dark brown paste, à la Marmite. As has already been extensively reported in Slate, there are no shortcuts when you're caramelizing onions; it always takes at least an hour, usually longer.

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.

If the heat is too high, the onions will burn. If you don't stir often at beginning and almost constantly toward the end, the onions will burn. If one little bit burns the whole batch needs to be tossed. Otherwise the soup ends up tasting like burnt onion.

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.

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.

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.

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.

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.

The acidity of wine helps balance the rich, sweet flavors of caramelized onions and beef broth in this classic soup. Replacing it with an acid such as apple cider vinegar or lemon juice can help fill the gap. Try adding a splash of vinegar or citrus juice at the end of cooking and adjust to taste.