Why it works: Pepper and parsley match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and cooks put them together in 34,122 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓
Puree of Bean Soup with Crusts
Ingredients
Directions
Make the stock
Make soup stock by boiling meat and marrow bones in 1 gallon of water with assorted vegetables until reduced by half.
Strain and skim off fat.
Prepare the beans
Soak navy beans overnight.
Cook with a pinch of baking soda until soft, then mash through a sieve.
Make the soup
Bring the stock to a boil and gradually mix in the bean puree.
Stir in minced onion.
Simmer for 15-20 minutes.
Season with mustard, salt, and red pepper.
Serve hot, garnished with parsley and accompanied by crusts.
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.
-
Pepper + parsleytop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Beans + mustardtop 4% of all pairsSmell alikestrongCooked together852 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Onion + mustardtop 6% of all pairsSmell alikestrongCooked together9,259 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Beans + oniontop 7% of all pairsSmell alikestrongCooked together5,242 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Mustard + parsleytop 8% of all pairsSmell alikestrongCooked together2,588 recipes
Shared aroma: trans-2-hexenal (green, leafy).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Navy beans
- Thicken the soup and give it body and a creamy texture once mashed into a puree.
- Soup stock
- Forms the savory liquid base that carries all the other flavours.
- Baking soda (in the method)
- Helps the beans soften fully during cooking.
- Minced onion
- Adds aromatic savoury flavour to the broth.
- Made mustard
- Adds sharp, pungent flavour that brightens the soup.
The step that matters
Gradually mixing the bean puree into the boiling stock. Adding the puree slowly and stirring constantly keeps it evenly dispersed, so it thickens smoothly instead of forming lumps that stay floury or stick to the pot.
Swap the onion
How well each one fits the dish's main ingredients (beans, butter, egg, mustard, pepper, parsley):
- Shallotfits better
- Chivefits better
- Lettucefits better
- Onionthe original
Fit is the average pairing score against beans, butter, egg, mustard, pepper, 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.
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.
German Style String Beans7 recipes
Tomato Soup526 recipes
Brown Bread461 recipes
Mutton Broth292 recipes