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 ↓
Salad Dressing
Ingredients
Directions
Make the custard base
Melt the butter in a saucepan over low heat.
Add the seasoning and stir until smooth, being careful not to brown.
Pour in the milk and bring to a boil.
Place the saucepan in another pan of hot water.
Finish and thicken
In a bowl, beat the eggs, celery salt, cayenne pepper, sugar, and mustard together.
Add the vinegar or lemon juice to the egg mixture.
Stir this mixture into the saucepan and cook until it thickens like soft custard, about five minutes.
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.
Photo for illustrative purposes only · Contact us to use it
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).
-
Celery + peppertop 5% of all pairsSmell alikestrongCooked together16,012 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
-
Mustard + vinegartop 7% of all pairsSmell alikemoderateCooked together14,067 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Mustard + peppertop 9% of all pairsSmell alikemoderateCooked together15,430 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
- Eggs
- Thicken the dressing as they set, giving it a soft custard body.
- Butter
- Adds richness and a smooth, creamy mouthfeel to the base.
- Milk
- Forms the liquid base that the eggs thicken into a custard.
- Vinegar or lemon juice
- Adds acidity that sharpens the flavor and balances the richness.
- Sugar
- Adds sweetness that rounds out the sharp and savory notes.
The step that matters
Cook the egg mixture gently in the hot water bath. Eggs thicken as their proteins set around 70°C, and higher heat or direct contact can curdle them. Gentle heat in the water bath lets the mixture thicken smoothly into custard.
Swap the celery
How well each one fits the dish's main ingredients (butter, mustard, sugar, milk, vinegar, egg, pepper):
- Cinnamonfits better
- Tarragonfits better
- Nutmegfits better
- Celerythe original
Fit is the average pairing score against butter, mustard, sugar, milk, vinegar, egg, pepper. 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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