Why it works: Beans and onion match in chemistry and in kitchens. They rank in the top 7% of all ingredient pairs, and cooks put them together in 5,242 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Haricot Beans, to Stew
Ingredients
Directions
Prepare
Soak and boil the beans until tender, then drain and dry them.
Cut the bacon into small dice and pour boiling water over it for a few minutes, then drain.
Cook the stew
In a stewpan, cook the bacon over medium heat until lightly browned.
Add the brown gravy and minced onion to the bacon, season with pepper and salt, and simmer for 15 minutes.
Stir in the beans and let them stew for another 15 minutes before serving.
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.
-
Beans + oniontop 7% of all pairsSmell alikestrongCooked together5,242 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Beans + peppertop 11% of all pairsSmell alikemoderateCooked together4,733 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Beans + flourtop 11% of all pairsSmell alikemoderateCooked together2,080 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Flour + oniontop 17% of all pairsSmell alikemoderateCooked together32,460 recipes
Shared aroma: isobutyraldehyde (malty, green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Haricot beans
- Form the bulk of the stew and soften into a tender, starchy base.
- Bacon
- Adds fat and savoury flavour as it browns in the pan.
- Brown gravy
- Provides liquid and body, thickened with flour to coat the beans.
- Onion
- Contributes aromatic sweetness that deepens as it cooks in the stew.
The step that matters
Simmering the beans with the gravy. Beans must be fully tender before they are stewed, since acidic or cold liquids and short cooking can leave them firm. Simmering gently keeps the thickened gravy smooth and prevents it from scorching on the base of the pan.
Swap the onion
How well each one fits the dish's main ingredients (beans, flour, pepper):
- Okrafits better
- Spinachfits better
- Sweet potatofits better
- Onionthe original
Fit is the average pairing score against beans, flour, pepper. 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