Jerusalem artichoke (Helianthus tuberosus) is the knobbly tuber of a tall sunflower relative, dug from late autumn onwards. It tastes faintly of artichoke heart with a nutty sweetness, and it is packed with inulin. This page covers what it contains, what herbalism and naturopathy credit it with, how to cook it tonight, and who should go gently with it.
The knobbly tuber whose inulin feeds the gut flora
Jerusalem artichoke at a glance
Jerusalem artichoke identity card
Item
Detail
Botanical name
Helianthus tuberosus
Family
Asteraceae
Other names
Sunchoke, earth pear, winter artichoke, Canadian truffle
Raw and grated, steamed, roasted, pureed, soup, sautéed, pickled
Harvest season
Late autumn to early spring, lifted as needed
Season on the plate
Late autumn through to mid-spring
Taste
Sweet, nutty, close to artichoke heart, faintly earthy
A short history
Native to North America, brought to Europe by the explorer Samuel de Champlain in the XVIIth century.
Its French name, topinambour, borrows from the name of a Brazilian people, the Tupinambas — a geographical mix-up that stuck.
During the Second World War it replaced requisitioned potatoes, then fell out of favour for decades because it recalled rationing.
Varieties differ in skin colour: white, yellow, and the pink-to-purple types such as ‘Rouge du Limousin’ and ‘Violet de Rennes’.
What it is credited with
Digestive comfort and regular transit. Naturopathy credits the inulin and fibre of the tuber with encouraging a sluggish transit along, and it is traditionally eaten for that purpose in winter meals.
Gut flora. Inulin has a long-standing reputation as a prebiotic food, in other words as something that feeds the friendly bacteria already living in the colon.
Feeling full. Herbal and naturopathic tradition credits inulin-rich vegetables with a filling, satisfying quality that takes the edge off snacking.
Nursing mothers. Country tradition placed Jerusalem artichoke among the vegetables given to women who were breastfeeding. This is folk usage, nothing more — see the cautions below.
Winter mineral food. It has a reputation as a restorative cold-season staple, thanks to its potassium, magnesium, calcium, iron and vitamin C content.
Vitamin C is an antioxidant and contributes to normal immune function; the iron and the minerals are simply part of what the tuber brings to a plate, nothing more is claimed for them here.
How to use it
Choosing and preparing
Pick tubers that are firm, heavy and unwrinkled, with no soft or green patches.
Scrub hard under running water with a brush — on smooth-skinned varieties, no peeling is needed at all.
Peeling raw is fiddly because of the knobbles. Cook them whole in their skin first, then the skin slips off between your fingers.
Once cut, drop the pieces into water with a squeeze of lemon to stop them browning.
Start with a small portion, around a handful per person, if you have never eaten it before.
Everyday ways to eat it
Raw and grated: grate one or two peeled tubers into a starter salad, dress with lemon, olive oil and salt. Crisp, sweet, close to water chestnut.
Steamed: 15 to 20 minutes for whole tubers, until a knife goes in without resistance. The gentlest cooking method for a sensitive stomach.
Roasted: halved, tossed with olive oil, garlic and a pinch of thyme, 30 to 40 minutes in a hot oven. The edges caramelise.
Pureed: boil, then mash half-and-half with potato to soften both flavour and texture.
Soup: simmer with onion and stock, blend smooth, finish with a spoon of cream. The classic winter cream soup.
Sautéed: sliced and pan-fried in butter for 10 minutes, as a side for meat or mushrooms.
Pickled: sliced thin in a vinegar brine, ready after a few days in the fridge, excellent with cold meats.
Flowers: the yellow petals are edible and scatter well over a mixed salad.
The yellow flowers are edible, scattered over mixed salads
Pairings that work
Mushrooms, in a pan or under a gratin.
Corn salad (lamb’s lettuce) with a lemon-spiked dressing.
Cauliflower, baked together.
Omelettes and ratatouille, cut small.
Duck, as in a duck parmentier with caramelised apples.
Ways of using Jerusalem artichoke, compared
Form
How it is prepared
What it suits
Raw, grated
Peeled, grated, dressed with lemon and oil
Crisp starters; the most intense flavour, and the hardest on the gut
Steamed
Whole in the skin, 15–20 minutes
The gentlest option; peels easily afterwards
Roasted
Halved with oil and herbs, 30–40 minutes hot oven
Side dish with meat or mushrooms; sweet, caramelised edges
Soup or puree
Boiled, then blended, often with potato
Winter meals; the easiest way to serve it to newcomers
Pickled
Sliced thin in vinegar brine, a few days in the fridge
Condiment with cold meats and cheese
Sliced and pickled, a sharp condiment for cold meats
Frequently Asked Questions
The one thing to remember: start with a small, well-cooked portion — steamed or in soup — and see how your gut takes to the inulin before serving it raw or in quantity.
Why does Jerusalem artichoke give me wind?
Because of its inulin, a plant sugar that human digestion does not break down. It travels intact to the colon, where the gut bacteria ferment it, and gas is the by-product. Smaller portions, thorough cooking and a gradual introduction all help, but some people never get on with it.
Do I have to peel it?
No. Scrubbing the skin under running water is enough for smooth-skinned varieties. If you want it peeled, cook the tubers whole in their skin first; once cooked, the skin comes away with almost no effort, which saves fighting the knobbles with a peeler.
When is Jerusalem artichoke in season?
It is lifted from late autumn to early spring and eaten right through that period, up to around mid-spring. Tubers keep better in the ground than in the kitchen, so gardeners dig them as they need them. Once out of the soil, they last only a few days in the fridge.
What does it taste like?
Sweet and nutty, with a clear echo of artichoke heart, which is where the English name comes from. Raw and grated it is crisp, close to water chestnut. Roasted, it caramelises at the edges; blended into soup, it turns silky and mild.
This information is provided for general interest and reflects the traditional use of plants. It is not a substitute for medical advice. If you are on medication, pregnant, or in any doubt, ask a healthcare professional.
