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French Onion Soup I

A savory soup of sautéed onions, stock, wine, and cheese, topped with toasted bread and melted cheese.

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Why it works: Onion and garlic match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 29,058 recipes. Both carry furaneol, which smells caramel, strawberry. The science ↓

French Onion Soup I

Time45 minutes

Ingredients

Directions

Make the soup

  1. Saute onions in butter until limp.

  2. Add flour, salt, pepper, garlic, and sugar.

  3. Cook over medium heat, stirring constantly, for about 5 minutes.

  4. Add parsley flakes, thyme, beef stock, chicken stock, and wine.

  5. Simmer for 45 minutes.

  6. Add cognac.

Assemble and serve

  1. Toast French bread and place in the bottom of ovenproof soup bowls.

  2. Sprinkle generously with Parmesan cheese.

  3. Ladle soup into bowls.

  4. Top with mozzarella cheese (thin slice or grated).

  5. Place under broiler until cheese melts and soup bubbles.

Nutrition, whole recipe (rough)

1307Calories
88 gProtein
45 gFat
125 gCarbs

Counts 15 of 16 ingredients. The other 1 aren't in our nutrition table and add nothing above, so the real totals are higher.

What these numbers assume: 15 portions
IngredientPortion assumedkcal
Flour1 cup (125g) all-purpose455
Beef100g cooked250
Chicken100g cooked165
Parmesan Cheese1 oz (28g)110
Butter1 tbsp (14g)102
Mozzarella Cheese1 oz (28g)85
Sugar1 tbsp (12.5g) granulated49
Onion1 medium (110g)44
Wine2 tbsp cooking wine (30ml)25
Clove1 tsp ground (2g)7
Pepper1 tsp ground (2.3g)6
Garlic1 clove (3g)4
Thyme1 tsp dried (1.4g)4
Parsley1 tbsp chopped fresh (3.8g)1
Salt1 tsp (6g)0
Cognacnot in our table0

One typical portion per ingredient; the recipe's quantities are not counted. A rough guide only, not for medical or dietary planning.

Recipe from the Recipes Wiki (Fandom).

Steps grouped into stages for easier reading; the method is the source's own.

Explore the science

The flavor team

The pairs that carry this dish. Each one is judged two ways: how much their aromas overlap, and how often cooks already put them together.

  1. Onion + garlictop 1% of all pairs
    Smell alikestrong
    Cooked together29,058 recipes

    Shared aroma: furaneol (caramel, strawberry).

  2. Pepper + parsleytop 2% of all pairs
    Smell alikestrong
    Cooked together34,122 recipes

    Shared aroma: 4'-methylacetophenone (bitter almond).

  3. Garlic + parsleytop 4% of all pairs
    Smell alikestrong
    Cooked together9,308 recipes

    Shared aroma: beta-phellandrene (minty, terpene).

  4. Pepper + clovetop 5% of all pairs
    Smell alikestrong
    Cooked together17,451 recipes

    Shared aroma: ethyl octanoate (fruity, wine).

  5. Clove + parsleytop 6% of all pairs
    Smell alikestrong
    Cooked together6,768 recipes

    Shared aroma: cuminaldehyde (Spicy, cumin).

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Onions
Slowly cooked until limp, they form the sweet, deep base of the soup.
Flour
Stirred into the cooked onions and butter, it thickens the soup body.
Beef stock
Forms the main savory liquid that carries the soup's flavor.
White wine
Adds acidity and aroma that brighten the rich broth.
Mozzarella cheese
Melts over the soup under the broiler, forming a browned, stretchy topping.
Parmesan cheese
Sprinkled on the bread, it adds salty flavor and helps the topping brown.

The step that matters

Cooking the onions until limp. Onions need time over heat to soften and release their sugars, which slowly brown and sweeten the base. Rushing this leaves the soup raw-tasting and flat.

Swap the clove

How well each one fits the dish's main ingredients (onion, butter, flour, pepper, garlic, sugar, parsley):

  1. Thymefits better
  2. Capersfits better
  3. Marjoramfits better
  4. Clovethe original

Fit is the average pairing score against onion, butter, flour, pepper, garlic, sugar, parsley. Candidates are from the same food group and used in at least 100 recipes.

“What each ingredient does” and “The step that matters” were written by Claude from this recipe’s own method and reviewed in samples by CompKitchen.

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