Overview

Horseradish is a perennial root vegetable in the Brassicaceae family, the same family as mustard, wasabi, broccoli, and cabbage. The intact root is odorless and mild, but when grated or crushed, its cell walls rupture and release allyl isothiocyanate, a volatile compound that produces a sharp, pungent heat that hits the sinuses rather than the tongue [2]. The heat dissipates quickly once exposed to air or heat, which is why prepared horseradish is often stabilized with vinegar.

Origin and history

Horseradish is probably native to southeastern Europe and western Asia [1]. It has been cultivated for at least 2,000 years. The ancient Greeks and Romans used it as a medicinal plant and a bitter herb, not as a condiment. By the Middle Ages, horseradish was grown in Germany and Scandinavia, where it was eaten with meat and fish. It arrived in England in the 16th century and was documented in North America by the 17th century [3]. Jewish Ashkenazi cuisine adopted horseradish as maror, the bitter herb on the Passover seder plate, a tradition that continues today.

Varieties and aliases

  • Common horseradish (Armoracia rusticana, syn. Cochlearia armoracia)
  • Red horseradish: prepared horseradish colored and flavored with beet juice, common in Eastern European and Jewish cuisines
  • Khren (Russian: хрен): the Russian name for the root and the condiment
  • Meerrettich (German): literally “sea radish,” the German name
  • Chrzan (Polish): the Polish name

Culinary uses

Horseradish is almost always used as a condiment, not a cooking vegetable. The root is peeled and grated fresh, or ground and preserved in vinegar and salt. In Eastern European cuisines, it is served with boiled meats such as beef tongue, with kholodets (jellied meat aspic), and with fatty fish like herring. In Ashkenazi Jewish cuisine, it is the standard maror on the Passover seder plate, often mixed with beets to make chrein. In British cuisine, horseradish sauce (grated horseradish in cream or vinegar) is the traditional accompaniment to roast beef. In the United States, prepared horseradish is a common ingredient in cocktail sauce for shrimp and oysters.

Cross-cuisine context

Horseradish has a direct and well-known analogue in Japanese cuisine: wasabi (Wasabia japonica). Most “wasabi” served outside Japan is actually a paste made from horseradish, mustard, starch, and green food coloring. Real wasabi is milder, sweeter, and more aromatic than horseradish, and it loses its flavor more quickly. The two plants are not closely related botanically, but they produce the same pungent compound (allyl isothiocyanate) through the same enzymatic reaction [2].

In Mexican cuisine, there is no direct analogue. The sharp, sinus-clearing heat of horseradish is distinct from the capsaicin heat of chiles. No Mexican ingredient replicates that specific sensation.

In Russian cuisine, horseradish is a foundational condiment. It is used fresh with kholodets, beef tongue, and other zakuski, and it is infused into vodka to make khrenovukha, a nastoyka (herbal vodka infusion).

Notes for cooks

  • Fresh horseradish root should be firm, heavy for its size, and free of soft spots or green patches. The skin is brown and rough; it must be peeled before grating.
  • Grate horseradish in a well-ventilated area or under a running exhaust fan. The fumes are potent and can cause eye irritation and coughing.
  • To preserve the heat, add vinegar immediately after grating. The acid stops the enzymatic reaction that produces the pungent compound. Without vinegar, the heat fades within an hour.