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Salad

French Dressing

A simple salad dressing made with salt, pepper, oil, onion juice, and vinegar.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Pepper and onion are a kitchen classic. They rank in the top 11% of all ingredient pairs, and cooks put them together in 68,474 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓

French Dressing

Ingredients

Directions

  1. In a bowl, combine salt and pepper.

  2. Add oil slowly while mixing.

  3. Stir in onion juice and vinegar until well blended.

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. Pepper + oniontop 11% of all pairs
    Smell alikemoderate
    Cooked together68,474 recipes

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

  2. Onion + vinegartop 14% of all pairs
    Smell alikemoderate
    Cooked together18,226 recipes

    Shared aroma: acetic acid (sour, vinegar).

  3. Pepper + vinegartop 14% of all pairs
    Smell alikemoderate
    Cooked together27,814 recipes

    Shared aroma: 4'-methylacetophenone (bitter almond).

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

What each ingredient does

Oil
Forms the fat base that carries flavor and gives the dressing body and a smooth mouthfeel.
Vinegar
Adds acidity, giving the dressing its sharp, bright taste that balances the oil.
Onion juice
Adds pungent onion aroma and flavor without the texture of chopped onion.

The step that matters

Adding the oil slowly while mixing. Oil dispersed into the seasoned liquid in small droplets stays blended longer. Pouring it in too fast lets the droplets join together, so the oil separates out from the vinegar.

Swap the onion

How well each one fits the dish's main ingredients (pepper, vinegar):

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

Fit is the average pairing score against pepper, 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.

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