Why it works: Horseradish and cider work together. They rank in the top 17% of all ingredient pairs, and cooks put them together in 338 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
To Keep Cider
Ingredients
Directions
Combine ¾ pound of sugar, the beaten egg whites, and a handful of coarse sea salt in a clean barrel of cider.
Leave the mixture open until fermentation ceases, then seal it tightly.
To keep cider sweet, allow it to ferment to your taste, then add 1½ cups of grated horseradish and shake well.
After a few weeks, rack off the cider and seal it in clean casks.
For preservation, mix 1 ounce of powdered charcoal and 1 ounce of powdered sulfur in an iron vessel.
Heat a piece of red-hot iron and lower it into the mixture, then suspend it above the cider in the barrel.
Keep the cider in a tight barrel in a cool cellar for long-term storage.
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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Horseradish + cidertop 17% of all pairsSmell alikelowCooked together338 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Sugar + eggtop 21% of all pairsSmell alikemoderateCooked together122,807 recipes
Shared aroma: 2-nonenal (fatty, green).
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Egg + horseradishtop 26% of all pairsSmell alikelowCooked together694 recipes
Shared aroma: 2-methylbutyraldehyde (malty, chocolate).
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Sugar + horseradishtop 27% of all pairsSmell alikemoderateCooked together1,314 recipes
Shared aroma: 1-penten-3-one (fish, pungent).
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Sugar + cidertop 27% of all pairsSmell alikelowCooked together3,308 recipes
Shared aroma: ethanol (alcoholic, ethereal).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
Swap the horseradish
How well each one fits the dish's main ingredients (sugar, egg, cider):
- Mustardfits better
- Capsicumfits better
- Sweet potatofits about as well
- Horseradishthe original
Fit is the average pairing score against sugar, egg, cider. Candidates are from the same food group and used in at least 100 recipes.
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