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Potato and Celery Root Mash

This rustic potato and celeriac mash is a sophisticated alternative to standard mashed potatoes. By blending starchy potatoes with earthy celeriac—also known as celery root—you create a side dish with a complex flavour profile and a beautifully light texture. The addition of freshly grated horseradish and tangy Dijon mustard provides a gentle heat that cuts through the richness of the butter and soured cream, making it an excellent companion for roasted meats or hearty vegetarian stews.

As a versatile vegetarian side, this dish is perfect for family Sunday lunches or festive gatherings. The celeriac adds a subtle nutty undertone while reducing the overall carbohydrate content of the mash. For the best results, use a mix of potato varieties to achieve a balance of fluffiness and creaminess. Serve it piping hot with a little extra butter melted on top for a truly comforting homemade meal.

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Ingredients for Potato and Celery Root Mash

  • 1.1kg mixed russet, Yukon Gold, and white-skinned potatoes, peeled, cut into 2" cubes

  • 450g celery root (celeriac), peeled, cut into 3/4" cubes

  • 1 6" piece of horseradish, peeled, coarsely grated

  • 350ml soured cream

  • 3 tablespoons Dijon mustard

  • 2 tablespoons (1/4 stick) unsalted butter

  • Kosher salt

Place potatoes, celery root, and horseradish in a large pot. Add water to cover by 1". Bring to a boil, reduce heat to medium-high, and simmer until vegetables are tender, 25-30 minutes.

Drain, reserving 240ml cooking liquid. Return vegetables to pot; add soured cream, Dijon mustard, and butter. Using a potato masher, coarsely mash vegetables. Add reserved cooking liquid by tablespoonfuls if mash is too stiff. Season to taste with salt.

Descargo de responsabilidad

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.

Historia del artículo

La información de esta página ha sido revisada por médicos cualificados.

  • 28 Enero 2026 | Publicado originalmente

    Autores:

    Editores de recetas del Reino Unido

    Revisado por expertos

    Editores de recetas del Reino Unido
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