Why it works: Beans and mustard match in chemistry and in kitchens. They rank in the top 4% of all ingredient pairs, and cooks put them together in 852 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Black Bean Puree
Ingredients
Directions
Prepare the beans
Soak the black beans overnight, then drain.
Add water and cloves to the beans and cook until tender, about four hours.
Pass the cooked beans through a sieve.
Make the puree
In a frying pan, cook the salt pork and onion for five minutes.
Add the bean puree to the pork and onion mixture.
Melt the butter, then stir in the flour and mustard.
Combine the butter mixture with the bean mixture and strain.
Garnish with sliced hard‑cooked egg and lemon.
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.
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Beans + mustardtop 4% of all pairsSmell alikestrongCooked together852 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Mustard + oniontop 6% of all pairsSmell alikestrongCooked together9,259 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Beans + oniontop 7% of all pairsSmell alikestrongCooked together5,242 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Clove + mustardtop 8% of all pairsSmell alikestrongCooked together3,829 recipes
Shared aroma: methyleugenol (clove, spice).
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Beans + clovetop 9% of all pairsSmell alikestrongCooked together908 recipes
Shared aroma: 2-heptanol (bitter, floral).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Black beans
- Provide the main body and bulk of the puree once cooked and sieved.
- Salt pork
- Adds savoury fat and rich flavour to the pork and onion base.
- Butter
- Adds fat and richness, and with flour forms a roux to thicken the puree.
- Flour
- Thickens the butter mixture so the puree becomes smooth and body-rich.
- Onion
- Adds aromatic sweetness and depth as it softens with the salt pork.
The step that matters
Combine the butter mixture with the bean mixture and strain.. Flour cooked briefly in butter forms a roux that thickens liquid smoothly; adding it to the puree and straining removes lumps and gives an even texture.
Swap the lemon
How well each one fits the dish's main ingredients (beans, clove, mustard, pork, butter, egg, onion):
- Avocadofits better
- Coconutfits better
- Cherryfits about as well
- Lemonthe original
Fit is the average pairing score against beans, clove, mustard, pork, butter, egg, onion. 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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