Translation guide
Horseradish is a pungent root used as a condiment. In Japanese cuisine, a similar condiment is wasabi, but true horseradish is also known and used, often in Western-style dishes.
horseradish (plant/condiment)
西洋わさび is the standard term; ホースラディッシュ is common in recipes.
Referring to the horseradish plant or its root as an ingredient.
Literally 'Western wasabi'. This is the standard term for horseradish as a plant/ingredient, distinguishing it from Japanese wasabi.
Grate horseradish root.
Katakana loanword from English. Common in recipes and Western food contexts.
Buy some horseradish.
Literally 'mountain wasabi'. Refers to a native Japanese plant (Armoracia rusticana, same as horseradish) that grows wild, sometimes used interchangeably with horseradish, but can cause confusion with wasabi.
Horseradish is often found in Hokkaido.
Referring to the prepared sauce or paste, often used with roast beef or in sauces.
Common term for prepared horseradish sauce, often mixed with cream or vinegar.
Serve roast beef with horseradish sauce.
Using the Japanese term for horseradish plus 'sauce'. Less common than the katakana version but understandable.
Horseradish sauce has a strong pungency.
Refers to pure horseradish paste without cream or other additives.
Add 1 tablespoon of horseradish paste.
When explaining horseradish to someone familiar with wasabi, or when wasabi is used as a substitute.
Explain that horseradish is often used as a substitute for wasabi outside Japan, or vice versa.
Overseas, horseradish is often used as a substitute for wasabi.
Powdered wasabi often contains horseradish. In some contexts, this may be what is meant by 'horseradish' in Japanese.
西洋わさび (horseradish) and わさび (Japanese wasabi) are different plants, but their pungency is similar. In Japan, わさび is the default green paste served with sushi, while 西洋わさび is used in Western dishes. Many cheap 'wasabi' products outside Japan are actually colored horseradish.
Real wasabi is expensive and has a more delicate pungency than horseradish.
If you want horseradish sauce for roast beef, ask for ホースラディッシュソース. If you want the fresh root, ask for 西洋わさび. Note that わさび alone will get you Japanese wasabi.
I love horseradish on my roast beef sandwich.
Horseradish is easy to grow in a garden.
Most commercial powdered wasabi is made from horseradish.