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 ↓
String Bean Salad
Ingredients
Directions
Prepare the beans
String and break the beans into short pieces.
Boil the beans in salted water until tender.
Make the salad
Slice the onion lengthwise and mix it with the cooled beans.
In a bowl, combine the egg yolk, butter, sour cream, and vinegar to achieve desired consistency.
Mix the dressing with the beans just before serving.
Chop the hard boiled egg finely for garnish.
Optionally, sprinkle with minced herbs or serve with French dressing.
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).
-
Butter + creamtop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
-
Onion + vinegartop 14% of all pairsSmell alikemoderateCooked together18,226 recipes
Shared aroma: acetic acid (sour, vinegar).
-
Onion + buttertop 15% of all pairsSmell alikemoderateCooked together42,912 recipes
Shared aroma: decanal (soap, orange peel).
-
Egg + buttertop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Tender young string beans
- Form the main body of the salad and provide its crisp-tender texture after boiling.
- Egg yolk
- Emulsifies with butter and sour cream to give the dressing a smooth, rich body.
- Sour cream
- Adds tangy richness and moisture to the dressing.
- Vinegar
- Adds acidity that brightens the dressing and balances its richness.
- Butter
- Adds fat and richness, helping the dressing taste smooth and mellow.
The step that matters
Combine the dressing to the desired consistency. Egg yolk, butter and sour cream form an emulsion that can split or turn thin if mixed too hard or too fast. Adjust gently so the dressing stays smooth and clings to the beans.
Swap the beans
How well each one fits the dish's main ingredients (onion, egg, butter, cream, vinegar):
- Sesamefits better
- Peanutfits about as well
- Almondfits about as well
- Beansthe original
Fit is the average pairing score against onion, egg, butter, cream, vinegar. 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.
Chicken Salad623 recipes
Salad Dressing491 recipes
Tomato Salad179 recipes
Cold Slaw160 recipes