Why it works: Celery and mustard are a kitchen classic. They rank in the top 2% of all ingredient pairs, and cooks put them together in 4,169 recipes. Both carry guaiacol, which smells smoky, sweet. The science ↓
Celery Salad
Ingredients
Directions
Prepare
Wash and dry the celery, then cut it into pieces in a salad bowl.
Make the dressing
In a separate bowl, mix the egg yolk, mustard, salt, pepper, lemon juice, and 2 tablespoons of water.
Beat the mixture together, then pour in the olive oil drop by drop.
Add 1 tablespoon of hot water and mix well.
Serve
Pour the dressing over the celery and serve.
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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Celery + mustardtop 2% of all pairsSmell alikemoderateCooked together4,169 recipes
Shared aroma: guaiacol (smoky, sweet).
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Pepper + lemontop 3% of all pairsSmell alikestrongCooked together27,047 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
-
Celery + lemontop 3% of all pairsSmell alikestrongCooked together3,467 recipes
Shared aroma: beta-phellandrene (minty, terpene).
-
Celery + peppertop 5% of all pairsSmell alikestrongCooked together16,012 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Lemon + olivetop 7% of all pairsSmell alikemoderateCooked together11,922 recipes
Shared aroma: 3-hexenal (apple, fruity).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Celery
- Forms the bulk of the salad and provides its crisp, fresh texture.
- Egg yolk
- Acts as an emulsifier, holding the oil and water together in a smooth dressing.
- Mustard
- Helps stabilise the emulsion and adds a sharp, pungent flavour.
- Olive oil
- Provides fat and richness, giving the dressing a smooth, silky body.
- Lemon juice
- Adds acidity that brightens the dressing and balances the richness of the oil.
The step that matters
Adding the olive oil drop by drop. Oil must be added slowly while beating so it disperses into tiny droplets. Adding it too fast can break the emulsion, leaving a greasy, separated dressing instead of a smooth one.
Swap the mustard
How well each one fits the dish's main ingredients (celery, egg, pepper, lemon, olive):
- Capsicumfits better
- Spinachfits better
- Tomatofits better
- Mustardthe original
Fit is the average pairing score against celery, egg, pepper, lemon, olive. 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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