Name: French Oyster Soup
Ingredients: 1 quart oysters; 4 cups milk; 1 slice onion; 2 blades mace; ⅓ cup butter; ⅓ cup flour; Yolks 2 eggs; Salt and pepper

Why it works: Milk and butter are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓

French Oyster Soup

Ingredients

Directions

Make same as Oyster Soup, adding yolks of eggs, slightly beaten, just before serving. Garnish with Fish Quenelles.

Nutrition, whole recipe (rough)

915Calories

38 gProtein

29 gFat

124 gCarbs

Counts 8 of 9 ingredients. The other 1 aren't in our nutrition table and add nothing above, so the real totals are higher.

What these numbers assume: 8 portions

Ingredient	Portion assumed	kcal
Flour	1 cup (125g) all-purpose	455
Milk	1 cup (244ml) whole	149
Butter	1 tbsp (14g)	102
Oyster	6 medium (84g)	81
Egg	1 large egg (50g)	78
Onion	1 medium (110g)	44
Black Pepper	1 tsp ground (2.3g)	6
Salt	1 tsp (6g)	0
Mace	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.

By Fannie Merritt Farmer. Recipe from a historical cookbook (Project Gutenberg).

Transcribed from a scanned cookbook and modernised for today's kitchens. Where the book gave no heat or time, or said "a moderate oven", the temperatures and times here may be modern equivalents rather than the book's own figures. See the original page.

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.

Milk + buttertop 7% of all pairs

Smell alikemoderate

Cooked together81,283 recipes

Shared aroma: (z)-4-heptenal (biscuit, cream).
Onion + peppertop 11% of all pairs

Smell alikemoderate

Cooked together68,474 recipes

Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Butter + flourtop 12% of all pairs

Smell alikelow

Cooked together124,287 recipes

Shared aroma: isobutyraldehyde (malty, green).
Oyster + buttertop 12% of all pairs

Smell alikemoderate

Cooked together8,184 recipes

Shared aroma: 2,6-nonadienal (cucumber, green).
Oyster + eggtop 14% of all pairs

Smell alikemoderate

Cooked together4,103 recipes

Shared aroma: 2-nonenal (fatty, green).

Butter and flour barely smell alike, yet cooks put them together in 124,287 recipes: they work on texture and structure more than aroma.

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

Swap the mace

How well each one fits the dish's main ingredients (oyster, milk, onion, butter, flour, egg, pepper):

Parsleyfits better
Nutmegfits better
Capersfits better
Macethe original

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