Why it works: Onion and horseradish match in chemistry and in kitchens. They rank in the top 7% of all ingredient pairs, and cooks put them together in 1,784 recipes. Both carry coumarin, which smells sweet, hay. The science ↓
Dutch Sauce
Ingredients
Directions
Make the sauce
In a saucepan, combine the sliced onion, horseradish, anchovies, alder vinegar, and stock.
Bring to a boil and simmer for about 10 minutes.
Strain the mixture through a fine sieve back into the saucepan.
Thicken and finish
In a bowl, whisk the eggs to create a liaison.
Stir the liaison into the sauce and heat on the stove until it begins to boil.
Remove from heat and continue stirring until cooled.
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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Onion + horseradishtop 7% of all pairsSmell alikestrongCooked together1,784 recipes
Shared aroma: coumarin (sweet, hay).
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Horseradish + vinegartop 12% of all pairsSmell alikemoderateCooked together2,609 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Onion + vinegartop 14% of all pairsSmell alikemoderateCooked together18,226 recipes
Shared aroma: acetic acid (sour, vinegar).
-
Horseradish + eggtop 26% of all pairsSmell alikelowCooked together694 recipes
Shared aroma: 2-methylbutyraldehyde (malty, chocolate).
-
Vinegar + eggtop 33% of all pairsSmell alikelowCooked together12,922 recipes
Shared aroma: acetic acid (sour, vinegar).
Vinegar and egg barely smell alike, yet cooks put them together in 12,922 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
- Eggs
- Thicken the sauce as a liaison, setting gently when heated.
- Anchovies
- Add savory depth, giving the sauce a salty, umami backbone.
- Alder vinegar
- Adds acidity that sharpens the sauce and balances its richness.
- Horseradish
- Provides the sharp, pungent aroma and heat characteristic of the sauce.
The step that matters
Adding the liaison to the hot sauce. Egg proteins set when heated, so if the sauce boils after the eggs go in, they can curdle and turn grainy. Stirring constantly and heating gently keeps the sauce smooth and thickened.
Swap the onion
How well each one fits the dish's main ingredients (horseradish, vinegar, egg):
- Mustardfits better
- Cucumberfits better
- Shallotfits better
- Onionthe original
Fit is the average pairing score against horseradish, vinegar, egg. 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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