Homemade Preserved Horseradish Recipe (2024)

Why It Works

  • Preserving horseradish in vinegar turns it into a ready-to-use condiment that lasts longer than a fresh root.

I always keep a jar of store-bought preserved horseradish in my fridge. In a pinch, it's a perfectly good product, whether I'm whipping up co*cktail sauce for poached shrimp or sitting down to a jar of gefilte fish for a light and lovely afternoon snack—and, as lovers of gefilte fish, weallknow it's fantastic with horseradish. For the very few of you in this world whodon'tlove gefilte fish, I'm sure you at least appreciate the power of a horseradish cream sauce on a roast beef sandwich.

Even better than the jarred stuff, though, is homemade preserved horseradish. Simple as can be, all it requires is grating fresh horseradish, then soaking it in vinegar with a little salt.

The first step is grabbing some fresh horseradish, which, admittedly, can be a little tough. First, because not every grocer carries it, but also (and primarily) because it's the single most suggestive vegetable you can reach out and touch in all the edible land. I'm hard to embarrass, and even I feel an awkward twinge when I pick one of these things up. Because, I mean, c'mon:

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But we're adults, and we can handle such things, right? So yeah, reach out and grab that horseradish and put it in your basket. On our way now!

Back at home, we first need to skin it. Now here comes a big warning: Horseradish can vary wildly in pungency. Milder roots are nothing to worry about, but really fresh, strong ones can seriously mess you up. A farmer friend once gave me a horseradish root straight from her soil, and I had to flee my apartment after starting to grate it because I literally couldn't breathe. I've never been attacked with mustard gas, but I have an inkling of what it's like after that experience.

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With that in mind (and windows WIDE open), start by trimming off the ends of the root with a knife.

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Then, with a sharp peeler (I like Y-peelers best), remove the rest of the exterior.

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The interior should be nice and white.

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Next, cut the root into manageable pieces, and dice it into chunks from there.

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Transfer it to a food processor or blender and, once again, be prepared for even more pungency: Chopping up the horseradish will release even more of its potent volatile chemicals, known as isothiocyanates, and may well send you running for fresh air.

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Then process or pulse, scraping down the sides, until finely ground. If you have ahigh-power blender, be careful not to overprocess the horseradish, or you'll end up with a pasty mush.

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The final step is to add vinegar and season with salt, but there's one little detail worth mentioning here. See, the horseradish root usually keeps its harsh isothiocyanates safely contained in its cell walls under chemical lock and key. When the cells are damaged, enzymes in the root are able to free the isothiocyanates. Think of it like a jailbreak, where the isothiocyanates are prisoners and the enzymes are an outside team tasked with freeing them. The blender or food processor (or even a metal box grater, if you want to do it manually) is like the dynamite used to blow the prison walls open. Once they're open, the more time the enzymes have to work their way through the prison and free those prisoners, the more prisoners will escape, making the air and flavor even more pungent.

So, the longer you wait to add the vinegar, the stronger the horseradish will get. Once added, though, the vinegar puts a stop to the process. That said, it really all depends on the horseradish itself—the one I was using in the photos here was mild enough that letting some of it sit for several minutes before I added the vinegar didn't change a thing. I used distilled white vinegar here.

Add salt to taste, and cut with a tablespoon or two of water if it's too strong. Mine here didn't need it, but sometimes it can help.

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Then just seal it up in an airtight container and keep it chilled. It'll keep at least a few weeks, if not longer, in the refrigerator.

Try this stuff in your co*cktail sauce or horseradish cream, or (most likely) on your gefilte fish, and that jar from the supermarket may end up forgotten at the back of the fridge.

July 29, 2015

Recipe Details

Homemade Preserved Horseradish Recipe

Active10 mins

Total10 mins

Serves16 servings

Makes1 pint

Ingredients

  • 1 horseradish root, ends trimmed, peeled, cut into 1-inch chunks (see notes)

  • Distilled white vinegar, for soaking

  • Kosher salt

Directions

  1. In a food processor or blender, process horseradish to fine shreds. Add enough vinegar to cover, then season with salt. If it tastes too pungent, add water, 1 tablespoon at a time, until the flavor is a little less harsh (though it should still be very strong and pungent). Keep refrigerated in an airtight container, up to 3 weeks.

    Homemade Preserved Horseradish Recipe (10)

Special Equipment

Food processor or blender

Notes

Fresh horseradish can sometimes be incredibly pungent: In some cases, once cut up and ground, it can even make the air difficult to breathe, like mustard gas. Make sure to work in a well-ventilated area, and be ready to escape to fresh air at any point if need be.

Homemade Preserved Horseradish Recipe (2024)

FAQs

What is the best way to preserve fresh horseradish? ›

Store in a refrigerator at 32 to 40°F in dark, perforated plastic bags for up to three months. If you are lucky enough to have a cold root cellar, use it for horseradish roots. Ideally, bundle the roots, store them in damp sand, and do not expose them to light.

How long will homemade horseradish keep? ›

How to Store Horseradish. Transfer the homemade horseradish to an airtight storage container or jar. Store it in the refrigerator for up to one month. You can freeze horseradish for up to six months, but it may lose some of its pungency.

How long does horseradish in vinegar last? ›

Add more vinegar, 1 teaspoon at a time, if needed. Transfer to a jar: Using a rubber spatula, carefully transfer the grated horseradish to a jar. It will keep for at least 1 month in the refrigerator.

How do you preserve horseradish without vinegar? ›

How can you preserve freshly grated horseradish without using vinegar or lemon juice (which makes it turn brown)? According to Penn State Extension service, adding ascorbic acid (vitamin C) will keep the horseradish from going brown. Because it is extremely spicy, horseradish must be processed with care.

How do you store horseradish long term? ›

To keep prepared horseradish at its flavorful best, store it in a tightly covered jar in the refrigerator or freezer. It will keep its quality for approximately four to six months in the refrigerator and longer in the freezer. To keep it hot, keep it cold.

Does jarred horseradish really go bad? ›

When you buy it from the store, jarred horseradish is typically refrigerated and should be kept that way. It has a good shelf life, and can be used until it starts to discolor and/or doesn't taste good.

Why does horseradish go bad? ›

This is because the root contains highly volatile oils which are released by enzyme activity when the root cells are crushed. If exposed to air or stored improperly, horseradish loses its pungency rapidly after grinding.

Why do you store horseradish upside down? ›

Horseradish (and actually almost anything) stays fresher longer if you store it upside down in the fridge. Less air exchange and oxidation when the "bubble" is at the end of the jar where no more air can get in.

What does vinegar do to horseradish? ›

Vinegar stops the enzymatic action of the processed root and stabilizes the degree of hotness. Keep the horseradish chilled after making and seal as soon as using. Add at the end of cooking to keep as much heat for the dish."

Why does horseradish turn GREY? ›

Discoloration also occurs because ground horseradish is high in acid and the oxygenation process–which causes discoloration–is stimulated in the presence of acid. Juvik suggests a remedy: ”By adding a little cream to the just-ground horseradish, you can neutralize the acidity.

Why did my horseradish turn brown? ›

Prepared horseradish can be kept in the refrigerator for 4-6 weeks or for 6 months or longer in the freezer. If your prepared horseradish has turned brown it means it has lost its potency and it's time for a fresh jar.

How do you process and preserve horseradish? ›

To preserve it, mix the grated horseradish with one teaspoon of sugar and half a teaspoon of salt and then pack it into a sterile jar. Add enough white wine vinegar to cover the horseradish (about 125ml, 4 fl oz) and seal the jar tightly.

Can you leave horseradish in the ground over winter? ›

Gardeners can also leave some horseradish in the ground over winter. Harvest the remaining crop in early spring before growth resumes.

Can I freeze fresh horseradish? ›

Yes, you can freeze horseradish, although it may lose a little pungency. It's best to peel it and grate it first, and then freeze it in small amounts so you can thaw just what you need. There are a couple of easy ways to do that.

What do you do with fresh horseradish root? ›

Also, freshly shredded horseradish makes a great addition to mashed potatoes or as a condiment with a medley of roasted root vegetables. You can also make horseradish cream and add it as a delightful swirl into thick soups or serve in place of traditional creamed horseradish. Horseradish is a mixologists delight, too.

How do you keep horseradish from turning brown? ›

I suggest adding a tablespoon of cream to each cup of ground horseradish.” Because discoloration in the refrigerator will occur eventually, no matter whether cream is added or not, Juvik suggests freezing the horseradish.

Can I vacuum seal horseradish root? ›

The best way to maximize potency while storing it for a day is to make sure it has as little contact with air as possible, and to refrigerate it. Vacumm-packing will do this, as well as simply finding a very small container you can fill to the top with grated horseradish and then seal.

References

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