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Salad

Bean and Onion Salad

A salad of cold baked beans, finely sliced onions, olives, hard‑boiled eggs, and lettuce dressed with olive oil, vinegar, salt, pepper, and sugar.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 10 ingredients
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Why it works: Beans and lettuce match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 500 recipes. Both carry 2-isobutyl-3-methoxypyrazine, which smells green bell pepper, earthy. The science ↓

Bean and Onion Salad

Ingredients

Directions

Prepare the onions

  1. Peel and slice the onions very finely.

  2. Cover the onions with cold water and let them stand for a few moments.

  3. Press the onions tightly with your hands to remove the strong taste, then drain thoroughly.

Assemble and serve

  1. In a salad bowl, combine the cold baked beans and onions.

  2. Add salt, pepper, olive oil, sugar, and vinegar.

  3. Mix lightly but thoroughly with a fork and spoon.

  4. Garnish with olives, sliced hard boiled eggs, and crisp lettuce.

Recipe from a historical cookbook (Internet Archive).

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.

  1. Beans + lettucetop 1% of all pairs
    Smell alikestrong
    Cooked together500 recipes

    Shared aroma: 2-isobutyl-3-methoxypyrazine (green bell pepper, earthy).

  2. Beans + olivetop 5% of all pairs
    Smell alikestrong
    Cooked together3,470 recipes

    Shared aroma: trans,trans-2,4-nonadienal (fatty, green).

  3. Olive + lettucetop 5% of all pairs
    Smell alikestrong
    Cooked together2,580 recipes

    Shared aroma: trans-2-hexenal (green, leafy).

  4. Onion + beanstop 7% of all pairs
    Smell alikestrong
    Cooked together5,242 recipes

    Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).

  5. Onion + lettucetop 8% of all pairs
    Smell alikestrong
    Cooked together3,562 recipes

    Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Onions
Pressing and draining removes their sharp, strong taste, leaving a milder flavour.
Baked beans
Form the bulk of the salad and add body and soft texture.
Olive oil
Adds fat and richness that coats the beans and onions.
Vinegar
Provides acidity that brightens the flavour of the salad.
Sugar
Balances the sharpness of the vinegar with a touch of sweetness.

The step that matters

Pressing the onions to remove the strong taste. Raw onion holds sharp sulfur compounds. Soaking in cold water and pressing firmly removes much of the harshness, so the onions don't overpower the beans. Draining thoroughly keeps excess water from diluting the dressing.

Swap the onion

How well each one fits the dish's main ingredients (beans, pepper, olive, sugar, vinegar, egg, lettuce):

  1. Capsicumfits better
  2. Mustardfits better
  3. Cucumberfits better
  4. Onionthe original

Fit is the average pairing score against beans, pepper, olive, sugar, vinegar, egg, lettuce. 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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