French Onion Soup Casserole Recipe | LaaLoosh (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.

Often a quick 2-5 minutes in the microwave will just give them that great head-start. And if you're using onions in your casserole, you can sauté them for a few minutes to deepen their flavor and avoid any raw onion taste in your finished dish.

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.

With such a soup, a knife is your friend, not your enemy. Using both the soup spoon and the knife, push the baked cheese against the rim of the cup or bowl and cut it gently with the knife. Once you've broken the cheese barrier, you can use the knife again to nudge bits of cheese onto the spoon.

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.

Pair beef broth with white wine (and skip the flour)

We've also seen recipes that call for red wine, white wine, or no wine at all. Our taste tests revealed the combination of an all-beef broth with white wine as the clear winner, as used in this Gourmet French Onion Soup.

Yellow onions are perfect for stews, soups, barbecues, roasts and sauces. Avoid eating them raw as they have a strong flavour.

Generally, casseroles with grains, rice or pasta that will cook during the baking process are usually covered, for at least part of the time. Casseroles made of cooked ingredients are usually baked uncovered. If you like a crisper, browner top, be sure the casserole is uncovered for at least part of the bake time.

While certain vegetables can work just fine added directly to simmering soups and stews (say, carrots and celery), other vegetables (onions, garlic, and the like) will almost always need at least a brief sweat in a fat-based liquid before adding the remaining ingredients.

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. A shot of brandy at the end helps too.

Why does my French onion soup taste bitter? ›

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.

Add Flour Or Cornstarch

You can thicken soup by adding flour, cornstarch, or another starchy substitute. For the best results, never add flour or cornstarch directly to your soup. If you do, it will clump up on top. Instead, ladle a small amount of broth into a separate bowl and let it cool.

Eating with your hands is considered impolite, so make sure to tuck into that steak frites with your knife and fork. Notable exceptions include bread and certain dishes including asparagus. One thing you may have noticed in France is people do not cut their salads. Do so, and you might receive a few funny looks.

Onions are a great source of soluble fibre and therefore a good prebiotic; food for the good gut bacteria. Optimal gut health is crucial for weight loss and this delicious soup provides great nutrients to help boost weight loss as part of a weight management programme.

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.

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. A shot of brandy at the end helps too.

"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. The choice of ingredient depends on the recipe, though.

To elevate the canned version, quickly saute fresh onions, instead. Cook the thinly sliced onions in butter until they start to soften and take on a golden brown color, which indicates their sweet taste. The process only takes a few minutes and infuses French onion soup with a rich, decadent taste.