Why it works: Shallot and horseradish match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 376 recipes. Both carry coumarin, which smells sweet, hay. The science ↓
Sauce for Steaks, Chops, Etc.
Ingredients
Directions
Pound the shallots and horseradish until smooth in a mortar.
Add the mushroom ketchup or walnut pickle, allspice, black pepper, and coarse sea salt.
Cover the mixture tightly and let it stand for 14 days.
Strain into small bottles, cork, seal securely, and store for use.
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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Shallot + horseradishtop 1% of all pairsSmell alikestrongCooked together376 recipes
Shared aroma: coumarin (sweet, hay).
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Mushroom + shallottop 4% of all pairsSmell alikemoderateCooked together1,982 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Horseradish + allspicetop 4% of all pairsSmell alikestrongCooked together654 recipes
Shared aroma: coumarin (sweet, hay).
-
Allspice + peppertop 5% of all pairsSmell alikestrongCooked together6,395 recipes
Shared aroma: estragole (anise, licorice).
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Shallot + allspicetop 6% of all pairsSmell alikestrongCooked together386 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Mushroom ketchup or walnut pickle
- Provides the savoury, umami-rich liquid base that carries the other flavours.
- Pickled shallots
- Adds sharp, aromatic onion flavour that mellows during the resting period.
- Grated horseradish
- Contributes pungent heat that fades somewhat as the sauce rests.
- Black pepper
- Adds sharpness and a mild background heat to the sauce.
The step that matters
Cover tightly and let it stand for 14 days. The long rest lets the flavours of the shallots, horseradish and spices slowly infuse the liquid. A loose cover can let air in and spoil the sauce, so the mixture must be sealed well.
Swap the allspice
How well each one fits the dish's main ingredients (mushroom, shallot, horseradish, pepper):
- Capersfits better
- Thymefits better
- Tarragonfits better
- Allspicethe original
Fit is the average pairing score against mushroom, shallot, horseradish, 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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