Why it works: Onion and parsley are a kitchen classic. They rank in the top 9% of all ingredient pairs, and cooks put them together in 25,843 recipes. Both carry 2,4-decadienal, which smells seaweed. The science ↓
Another White Soup
Ingredients
Directions
Make the stock
Boil the water, veal, fowl, whole white pepper, mace, onions, and parsley for 3 hours.
Strain the mixture and return it to the pot to heat.
Finish and serve
Before serving, gradually stir in the cream and beaten egg yolks.
Do not let the soup boil after adding the cream and eggs to prevent curdling.
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.
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 + parsleytop 9% of all pairsSmell alikemoderateCooked together25,843 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
White pepper + macetop 9% of all pairsSmell alikemoderateCooked together1,695 recipes
Shared aroma: myrcene (balsamic, herbaceous).
-
White pepper + parsleytop 14% of all pairsSmell alikelowCooked together1,451 recipes
Shared aroma: myrcene (balsamic, herbaceous).
-
Mace + parsleytop 15% of all pairsSmell alikemoderateCooked together4,268 recipes
Shared aroma: myristicin (spice, warm).
-
Mace + oniontop 17% of all pairsSmell alikelowCooked together7,078 recipes
Shared aroma: eugenol (clove, spicy).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Veal
- Long simmering releases gelatin and flavor, giving the stock body and richness.
- Fowl
- Simmered with the veal, it adds savory depth and body to the stock.
- Egg yolks
- Thicken the soup and add richness when gently heated into the liquid.
- Cream
- Adds fat and smoothness, mellowing the stock into a creamy texture.
The step that matters
Keep the soup below a boil after adding cream and eggs. Egg proteins set when overheated, so boiling after adding the yolks can curdle the soup and leave it grainy. Stirring the yolks in gradually and keeping the heat gentle keeps it smooth.
Swap the onion
How well each one fits the dish's main ingredients (veal, white pepper, mace, parsley, cream, egg):
- Carrotfits better
- Shallotfits better
- Potatofits better
- Onionthe original
Fit is the average pairing score against veal, white pepper, mace, parsley, cream, egg. 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.
More white soup recipes
You might also like
The free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.
Indian Spiced Potato Soup with Tofu and Spinach448 recipes
Clear Carrot and Bottle Gourd Soup65 recipes
Mock Bisque Soup51 recipes
Cream of Asparagus Soup42 recipes