Why it works: Vinegar and mustard are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 14,067 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Velvet Salad Dressing
Ingredients
Directions
Make the dressing
Beat the egg yolks until very light.
Add the vinegar and water to the egg yolks.
Mix the sugar, mustard, salt, and flour together, then add to the egg mixture.
Place the mixture in a round-bottomed bowl set in another pan of water to avoid direct heat.
Whip the mixture vigorously until it thickens using a wire egg beater.
Add the butter after removing from heat.
Finish and cool
Allow the mixture to cool thoroughly before adding the marshmallows.
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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Vinegar + mustardtop 7% of all pairsSmell alikemoderateCooked together14,067 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + buttertop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Mustard + flourtop 13% of all pairsSmell alikemoderateCooked together5,066 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Sugar + flourtop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
-
Vinegar + sugartop 15% of all pairsSmell alikemoderateCooked together20,806 recipes
Shared aroma: beta-damascenone (apple, rose).
Flour and butter barely smell alike, yet cooks put them together in 124,287 recipes: they work on texture and structure more than aroma.
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Egg yolks
- Thicken the dressing as they cook and give it a rich, smooth body.
- Sugar
- Adds sweetness and balances the sharpness of the vinegar.
- Vinegar
- Adds acidity that gives the dressing its tangy flavour.
- Flour
- Stabilises the custard-like mixture so it holds its thickness.
- Butter
- Adds fat for a richer, softer mouthfeel.
- Marshmallows
- Add sweetness and a soft, light texture when folded in.
The step that matters
Whip until thickened over indirect heat. Egg yolks thicken as they warm, but if they get too hot they scramble and curdle. Gentle indirect heat in a water bath, with constant whisking, lets them set into a smooth dressing.
Swap the mustard
How well each one fits the dish's main ingredients (egg, vinegar, sugar, flour, butter):
- Shallotfits about as well
- Mustardthe original
- Chivefits about as well
- Cucumberfits about as well
Fit is the average pairing score against egg, vinegar, sugar, flour, butter. 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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