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
Ingredients
Directions
Make the soup
Saute onions in butter until limp.
Add flour, salt, pepper, garlic, and sugar.
Cook over medium heat, stirring constantly, for about 5 minutes.
Add parsley flakes, thyme, beef stock, chicken stock, and wine.
Simmer for 45 minutes.
Add cognac.
Assemble and serve
Toast French bread and place in the bottom of ovenproof soup bowls.
Sprinkle generously with Parmesan cheese.
Ladle soup into bowls.
Top with mozzarella cheese (thin slice or grated).
Place under broiler until cheese melts and soup bubbles.
Nutrition, whole recipe (rough)
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
| Ingredient | Portion assumed | kcal |
|---|---|---|
| Flour | 1 cup (125g) all-purpose | 455 |
| Beef | 100g cooked | 250 |
| Chicken | 100g cooked | 165 |
| Parmesan Cheese | 1 oz (28g) | 110 |
| Butter | 1 tbsp (14g) | 102 |
| Mozzarella Cheese | 1 oz (28g) | 85 |
| Sugar | 1 tbsp (12.5g) granulated | 49 |
| Onion | 1 medium (110g) | 44 |
| Wine | 2 tbsp cooking wine (30ml) | 25 |
| Clove | 1 tsp ground (2g) | 7 |
| Pepper | 1 tsp ground (2.3g) | 6 |
| Garlic | 1 clove (3g) | 4 |
| Thyme | 1 tsp dried (1.4g) | 4 |
| Parsley | 1 tbsp chopped fresh (3.8g) | 1 |
| Salt | 1 tsp (6g) | 0 |
| Cognac | not in our table | 0 |
One typical portion per ingredient; the recipe's quantities are not counted. A rough guide only, not for medical or dietary planning.
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.
-
Onion + garlictop 1% of all pairsSmell alikestrongCooked together29,058 recipes
Shared aroma: furaneol (caramel, strawberry).
-
Pepper + parsleytop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Garlic + parsleytop 4% of all pairsSmell alikestrongCooked together9,308 recipes
Shared aroma: beta-phellandrene (minty, terpene).
-
Pepper + clovetop 5% of all pairsSmell alikestrongCooked together17,451 recipes
Shared aroma: ethyl octanoate (fruity, wine).
-
Clove + parsleytop 6% of all pairsSmell alikestrongCooked 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):
- Thymefits better
- Capersfits better
- Marjoramfits better
- 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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