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Celery Root and Potato Puree with Roasted Jerusalem Artichoke "Croutons"

This elegant celeriac and potato puree offers a sophisticated twist on classic mashed potatoes, bringing a delicate, nutty flavour to your dinner table. By simmering the root vegetables in a mix of milk and chicken stock, the result is an incredibly creamy texture that balances beautifully with the earthy notes of the garlic and fresh thyme. It is a wonderful vegetarian side dish that feels refined enough for a dinner party while remaining deeply comforting.

To add a delightful contrast in texture, the puree is topped with roasted Jerusalem artichoke ‘croutons’. These golden, crispy morsels provide a savoury crunch that elevates the dish. This recipe is an excellent accompaniment to roasted meats or a nut roast, and it can even be prepared a day in advance to save time during busy weekend hosting.

Continue reading below

Ingredients for Celery Root and Potato Puree with Roasted Jerusalem Artichoke "Croutons"

  • 2 medium celery roots (celeriac

  • 800g total), trimmed, peeled, cut into 1-inch cubes (about 1200g )

  • 450g russet potatoes, peeled, cut into 3/4-inch cubes (about 725ml )

  • 475ml low-salt chicken broth

  • 475ml whole milk

  • 3 garlic cloves, peeled

  • 3 fresh thyme sprigs

  • 1 fresh bay leaf

  • 4 tablespoons (1/2 stick) unsalted butter, divided

  • 230g Jerusalem artichokes (also called sunchokes), scrubbed

  • 1/2 tablespoons extra-virgin olive oil

  • 1 teaspoon chopped fresh thyme (for garnish)

  • Ingredient info: Jerusalem artichokes, the tubers of a variety of sunflower, are available in the produce section of some supermarkets and at farmers' markets.

Combine first 7 ingredients in heavy large pot. Add enough water to cover. Sprinkle with salt. Bring to boil, reduce heat to medium, and simmer with lid slightly ajar until vegetables are tender, 15 to 20 minutes. Drain; return to pot. Discard thyme sprigs and bay leaf. Stir over medium heat to dry vegetables. Using potato masher, mash vegetables until coarsely pureed. Mash in 3 1/2 tablespoons butter. Season with salt and pepper. DO AHEAD: Can be made 1 day ahead. Transfer to microwave-safe bowl; cover and chill. Rewarm in microwave before serving.

Preheat oven to 218°C. Cut Jerusalem artichokes into 1/2-inch cubes. Place in medium bowl; add oil, sprinkle with salt and pepper, and toss to coat. Dot with remaining 1/2 tablespoons butter. Transfer to rimmed baking sheet; roast until tender and golden brown, turning occasionally, about 25 minutes.

Place celery root and potato puree in serving bowl. Sprinkle Jerusalem artichokes and chopped thyme over and serve.

Disclaimer

While every effort has been made to ensure the information is accurate and up to date, individual needs may vary and dietary requirements can differ based on personal health conditions. Always check food labels and allergen information before preparing or consuming any recipe. If you have specific health concerns, allergies, intolerances, or are following a medically prescribed diet, seek advice from your GP, pharmacist, or a registered dietitian before making significant changes to your diet or lifestyle.

Article history

The information on this page is peer reviewed by qualified clinicians.

  • 28 Jan 2026 | Originally published

    Authored by:

    UK recipe editors

    Peer reviewed by

    UK recipe editors
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