At first glance, sunchokes may not look especially elegant. Their thin brown skin, irregular shape and knobby surface can make them resemble ginger root or a misshapen potato. Beneath that rustic exterior, however, is a crisp, pale vegetable with a subtly sweet, nutty flavor and remarkable culinary versatility.
Also known as Jerusalem artichokes, sunchokes can be roasted until caramelized, blended into silky soups, shaved raw into salads or transformed into crisp chips. Their unusual name and appearance sometimes cause confusion, but this North American root vegetable deserves greater recognition in both home kitchens and restaurant dining rooms.
What Is a Sunchoke?
A sunchoke is the edible underground tuber of Helianthus tuberosus, a tall flowering plant related to the sunflower.
The plant produces bright yellow blossoms above the ground and clusters of edible tubers beneath it. Depending on the variety, those tubers may be round, elongated or heavily branched. Their skin can range from light tan to reddish brown, while the interior is usually ivory or creamy white.
Sunchokes are native to North America and were cultivated and eaten by Indigenous peoples long before European settlement. They later traveled to Europe, where they became established as both a food crop and an ornamental plant.
Are Sunchokes Artichokes?
Despite the name Jerusalem artichoke, sunchokes are not closely related to globe artichokes.
Globe artichokes are the immature flower buds of a thistle-like plant. Sunchokes are underground tubers from a species in the sunflower family. The two vegetables look entirely different and are prepared in different ways.
The word “Jerusalem” is also misleading because the plant did not originate in Jerusalem. One explanation suggests that the name developed from a misunderstanding of the Italian word girasole, meaning sunflower or “turning toward the sun.”
To avoid confusion, many farmers, chefs and produce sellers now prefer the name sunchoke.
What Do Sunchokes Taste Like?
Raw sunchokes have a crisp, juicy texture similar to water chestnuts or firm pears. Their flavor is mild, earthy and slightly sweet, with notes that may recall sunflower seeds, hazelnuts, artichoke hearts or fresh potatoes.
Cooking changes both their flavor and texture. Roasting brings out their natural sweetness and creates caramelized edges. Boiling or simmering makes them soft and suitable for purées, soups and mashes.
Their flavor is distinctive without being overpowering, allowing them to work with bold seasonings as well as delicate ingredients.
How Sunchokes Differ From Potatoes
Sunchokes are frequently treated like potatoes in the kitchen, but the two vegetables behave differently.
Potatoes are high in starch and become fluffy, creamy or crisp depending on the variety and cooking method. Sunchokes contain much less starch and remain slightly more moist and translucent when cooked.
A sunchoke purée is generally smoother and less dense than mashed potatoes. Roasted sunchokes develop browned surfaces, but their interiors tend to remain creamy rather than dry and fluffy.
Because sunchokes lack the binding starch of potatoes, recipes may need additional potatoes, flour, breadcrumbs or eggs when structure is important.
Selecting Fresh Sunchokes
Look for sunchokes that feel firm and heavy for their size. The skin should appear relatively smooth and tight, although the tubers will naturally have bumps, knobs and irregular shapes.
Avoid pieces that are soft, shriveled, moldy or excessively bruised. Small cuts and surface marks are usually harmless if the flesh beneath them remains firm.
Larger, smoother tubers are easier to clean and peel, while smaller or more branched pieces may have slightly more surface area for browning when roasted.
Do Sunchokes Need to Be Peeled?
Sunchoke skin is edible, so peeling is optional.
The thin skin adds color, texture and a slightly earthy flavor. Leaving it on also reduces waste and makes preparation easier. Scrub the tubers thoroughly under running water, paying close attention to soil trapped around the knobs and crevices.
Peeling may be preferable for especially smooth soups, refined purées or pale sauces. Because the tubers are irregularly shaped, a small paring knife is often more practical than a standard vegetable peeler.
Place peeled or cut sunchokes in acidulated water containing lemon juice or vinegar if they will not be cooked immediately. Like potatoes and apples, their exposed flesh can darken after contact with air.
How to Cook Sunchokes
Sunchokes can be prepared using many of the same techniques applied to potatoes, carrots and other root vegetables.
Roasting
Roasting is one of the easiest and most flavorful methods.
Cut the sunchokes into similarly sized pieces, coat them lightly with oil and season with salt and pepper. Roast them in a hot oven until browned outside and tender within.
Garlic, rosemary, thyme, sage and smoked paprika all pair well with their earthy sweetness. A finishing splash of lemon juice or vinegar helps balance the caramelized flavor.
Sautéing
Thinly sliced sunchokes can be sautéed in butter or olive oil until golden and tender. Begin over moderate heat so the centers cook before the surfaces become too dark.
They can be served as a side dish or combined with mushrooms, onions, greens or bacon.
Boiling and Steaming
Boiled or steamed sunchokes become soft enough to mash or purée. They can be cooked alone or mixed with potatoes, cauliflower, celery root or parsnips.
Avoid overcooking, as the tubers can become watery and lose their structure.
Frying
Sunchokes can be sliced thinly and fried into delicate chips. They may also be cut into small pieces and cooked like home fries.
For the best texture, dry the cut pieces thoroughly before placing them in hot oil.
Eating Them Raw
Raw sunchokes add crunch to salads and slaws. Slice them very thinly with a sharp knife or mandoline and dress them promptly with citrus juice or vinegar.
They pair especially well with apples, pears, fennel, celery, bitter greens and toasted nuts.
Sunchoke Soup
Sunchokes produce exceptionally smooth, elegant soups.
A basic soup may begin with onions or leeks softened in butter or olive oil. Add sliced sunchokes, stock and perhaps a small potato for body. Simmer until tender and blend until completely smooth.
Cream can be added for richness, although the tubers naturally create a velvety texture. Garnishes might include roasted mushrooms, hazelnuts, crisp herbs, browned butter, bacon or a drizzle of truffle oil.
Because the flavor is delicate, use strongly flavored garnishes sparingly.
Ingredients That Pair Well With Sunchokes
Sunchokes work well with both rustic and refined ingredients. Particularly successful pairings include:
Lemon and other citrus fruits
Garlic, shallots and leeks
Thyme, rosemary and sage
Butter and olive oil
Mushrooms and truffles
Apples, pears and grapes
Bacon, pancetta and roasted poultry
Hazelnuts, walnuts and almonds
Parmesan, goat cheese and blue cheese
Mustard and vinegar
Parsley, chives and tarragon
Scallops, white fish and shellfish
Their natural sweetness benefits from acidity, while their earthy character complements roasted meats and forest-like flavors.
Nutrition and Inulin
Sunchokes contain fiber, potassium, iron and several other nutrients. One of their most notable components is inulin, a type of carbohydrate that functions as a prebiotic fiber.
Inulin is not digested in the same way as ordinary starch. Instead, it reaches the large intestine, where it can be fermented by intestinal bacteria.
This quality has helped sunchokes gain attention as a fiber-rich alternative to potatoes. However, it also explains why they can cause digestive discomfort for some people.
Why Sunchokes Can Cause Gas
The inulin in sunchokes may lead to gas, bloating or abdominal discomfort, particularly when a large portion is eaten by someone who is not accustomed to the vegetable.
Sensitivity varies considerably. Some people can enjoy sunchokes without difficulty, while others may experience noticeable effects after a relatively small serving.
Anyone trying them for the first time may wish to begin with a modest portion. Thorough cooking may make the texture more appealing, but it does not completely eliminate the inulin.
Combining sunchokes with other vegetables rather than serving a large portion alone is another practical approach.
How to Store Sunchokes
Fresh sunchokes lose moisture fairly quickly and should generally be refrigerated.
Place unwashed tubers in a perforated plastic bag, reusable produce bag or loosely covered container in the refrigerator’s crisper drawer. Excess moisture can encourage spoilage, so avoid sealing wet sunchokes in an airtight container.
Wash them shortly before cooking rather than before storage. Depending on freshness and storage conditions, they may keep for approximately one to three weeks.
Sunchokes can remain in the ground through cold weather in many growing regions, and gardeners often harvest them as needed after the plant has died back.
Growing Sunchokes
Sunchokes are vigorous plants that can grow several feet tall and produce clusters of yellow flowers resembling small sunflowers.
They are relatively easy to grow, but they can spread aggressively. Even a small piece of tuber left in the soil may produce a new plant the following season.
For this reason, gardeners often plant sunchokes in a contained bed or an area where expansion will not be a problem. The tubers are usually harvested in autumn after the foliage begins to die back. Exposure to cold temperatures can make them taste slightly sweeter.
A Vegetable Worth Rediscovering
Sunchokes may be irregular in appearance and confusing in name, but they are among the most versatile cold-weather vegetables.
They can be crisp and refreshing when raw, golden and sweet when roasted or smooth and luxurious when blended into soup. Their flavor is familiar enough to be approachable yet distinctive enough to bring something new to the plate.
Whether served beside a roast, shaved into a salad or transformed into a refined purée, sunchokes demonstrate that an unpolished exterior can conceal an unexpectedly elegant ingredient.
