Why it works: Parsley and pepper 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 ↓
Haricot Beans
Ingredients
Directions
Prepare the beans
Soak the beans in cold water with a pinch of baking soda for 12 hours.
Drain the beans.
Cook the beans
Place the beans in a pan with cold water and boil gently for 3.5 hours.
Drain the beans again.
Finish and serve
Combine butter, parsley, salt, and pepper.
Add the milk and beans.
Cook for an additional 15 minutes.
Transfer to a hot dish.
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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Parsley + peppertop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Milk + buttertop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
-
Beans + parsleytop 8% of all pairsSmell alikestrongCooked together1,376 recipes
Shared aroma: linalool (floral, citrus).
-
Beans + peppertop 11% of all pairsSmell alikemoderateCooked together4,733 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Parsley + buttertop 15% of all pairsSmell alikemoderateCooked together28,563 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
- Haricot beans
- Form the main body of the dish; long soaking and boiling soften their dense starchy flesh.
- Milk
- Adds moisture and creaminess, loosening the beans into a softer, saucier texture.
- Butter
- Adds fat for richness and a smooth mouthfeel.
- Parsley
- Contributes fresh, herbal aroma and a little color.
The step that matters
Boiling the beans gently for 3.5 hours. Gentle simmering softens the beans evenly without breaking their skins. A hard, rapid boil can split them and leave some pieces mushy while others stay firm.
Swap the beans
How well each one fits the dish's main ingredients (parsley, milk, pepper, butter):
- Walnutfits about as well
- Chickpeafits about as well
- Beansthe original
- Chestnutfits about as well
Fit is the average pairing score against parsley, milk, pepper, butter. 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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