Why it works: Celery and parsley match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 6,810 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓
Oyster Soup
Ingredients
Directions
Prepare the oysters
Clean and pick over oysters as for Oyster Stew; reserve liquor.
Cook and strain
Add oysters slightly chopped, heat slowly to boiling point, and let simmer for twenty minutes.
Strain through cheesecloth.
Thicken and finish
Reheat liquor and thicken with butter and flour cooked together.
Scald milk with onion, celery, mace, parsley, and bay leaf.
Remove seasonings and add to oyster liquor.
Season with salt and pepper.
Nutrition, whole recipe (rough)
Counts 10 of 11 ingredients. The other 1 aren't in our nutrition table and add nothing above, so the real totals are higher.
What these numbers assume: 10 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 |
| Onion | 1 medium (110g) | 44 |
| Celery | 1 stalk (40g) | 6 |
| Black Pepper | 1 tsp ground (2.3g) | 6 |
| Bay Leaf | 1 leaf (0.6g) | 2 |
| Parsley | 1 tbsp chopped fresh (3.8g) | 1 |
| 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.
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.
-
Celery + parsleytop 1% of all pairsSmell alikestrongCooked together6,810 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Milk + buttertop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
-
Onion + celerytop 7% of all pairsSmell alikemoderateCooked together18,518 recipes
Shared aroma: guaiacol (smoky, sweet).
-
Onion + parsleytop 9% of all pairsSmell alikemoderateCooked together25,843 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, 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
What each ingredient does
- Oysters
- Provide the main flavor and the tender seafood body of the soup.
- Milk
- Forms the creamy liquid base that gives the soup its smooth, rich body.
- Butter
- Adds richness and carries flavor, and cooks with flour to form a roux.
- Flour
- Thickens the liquor as its starch swells when cooked in hot liquid.
The step that matters
Cooking the butter and flour together. Flour must be cooked with the butter before it goes into the liquor. Heating the starch in hot liquid makes it swell and thicken smoothly, and cooking it first removes the raw, pasty taste and helps prevent lumps.
Swap the mace
How well each one fits the dish's main ingredients (oyster, milk, onion, celery, parsley, butter, flour):
- Capersfits better
- Thymefits better
- Tarragonfits better
- Macethe original
Fit is the average pairing score against oyster, milk, onion, celery, parsley, butter, flour. 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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