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Peppery Horseradish Mashed Potatoes

Peer reviewed by UK recipe editorsAuthored by UK recipe editorsOriginally published 28 Jan 2026

Meets Patient’s editorial guidelines

These peppery horseradish mashed potatoes offer a sophisticated twist on a classic vegetarian side dish. By incorporating the sharp, warming heat of horseradish into fluffy russet potatoes, you create a flavour profile that perfectly complements rich gravies and roasted vegetables. The addition of creamy whole milk and unsalted butter ensures a silky texture, while the freshly ground black pepper provides a subtle, lingering warmth that cuts through the richness.

This simple yet effective recipe is ideal for elevating a traditional Sunday roast or serving alongside a hearty mushroom pie. Because the horseradish is drained before being added, you get all the punchy aroma without making the mash too wet. It is a brilliant way to add a bit of zing to your midweek meals, providing a comforting and savoury accompaniment that the whole family will enjoy.

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Ingredients for Peppery Horseradish Mashed Potatoes

  • 675g russet (baking) potatoes (3 medium), peeled and cut into 1-inch pieces

  • 2 teaspoons kosher salt

  • 120ml whole milk

  • 3 tablespoons unsalted butter

  • 1/4 teaspoons freshly ground black pepper

  • 2 tablespoons bottled horseradish, drained

How to make Peppery Horseradish Mashed Potatoes

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Put potatoes and kosher salt in a large heavy saucepan and generously cover with cold water. Bring to a boil then reduce heat and simmer, partially covered, until potatoes are tender, about 20 minutes. Drain well and return to saucepan.

Meanwhile, heat milk and butter in a small saucepan until butter is melted and milk is hot but not boiling. Add milk mixture, along with horseradish and pepper, to potatoes and mash with a potato masher or fork (to desired consistency). Season with salt and serve warm.

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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