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, Stewed
Ingredients
Directions
Prepare the bacon and onion
Cut the bacon into small dice.
Pour boiling water over the bacon, let it stand for five minutes, then drain.
Brown the bacon in a stewpan.
Mince the onion and boil it for five minutes, then add it to the stewpan with the bacon.
Stew the beans
Add the brown sauce and cook slowly for ten minutes.
Add the boiled beans and cook for an additional ten minutes.
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 + saucetop 18% of all pairsSmell alikemoderateCooked together1,184 recipes
Shared aroma: ethanol (alcoholic, ethereal).
-
Sauce + oniontop 19% of all pairsSmell alikelowCooked together10,474 recipes
Shared aroma: ethanol (alcoholic, ethereal).
Sauce and onion barely smell alike, yet cooks put them together in 10,474 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
- Boiled beans
- Form the main body of the dish and absorb the flavour of the sauce as they stew.
- Brown sauce
- Adds savoury depth and a rich brown colour to the stew.
- Bacon
- Provides fat and smoky, savoury flavour, and browns to build flavour in the pan.
- Onion
- Contributes aroma and savoury background flavour once softened.
The step that matters
Stew slowly after adding the brown sauce. Cooking gently keeps the sauce from scorching on the bottom of the pan and lets its flavours meld evenly with the bacon and onion before the beans go in.
Swap the onion
How well each one fits the dish's main ingredients (beans, sauce):
- Welsh onionfits better
- Tomatofits better
- Mustardfits better
- Onionthe original
Fit is the average pairing score against beans, sauce. 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