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Ultra-creamy mashed potatoes for the perfect side dish

These ultra-creamy mashed potatoes are the epitome of comfort food, perfect for any vegetarian feast. Made with Yukon Gold potatoes, this dish is elevated by the addition of buttery double cream and full-fat milk, resulting in a luxuriously smooth texture that melts in your mouth. The subtle hints of roasted garlic and fresh rosemary infuse the dish with a fragrant warmth, making it an inviting side for any occasion.

Ideal for family dinners or special gatherings, these mashed potatoes can easily become the star of the meal. They pair beautifully with roasted vegetables or a rich vegetarian gravy, providing a satisfying and wholesome option that keeps everyone coming back for more. With their creamy consistency and delightful flavour, they are sure to please even the most discerning palates.

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Ingredients for Ultra-creamy mashed potatoes

  • 1,800 g medium yukon gold potatoes, scrubbed

  • 20 ml kosher salt, plus more

  • 360 ml full-fat milk

  • 120 ml double cream

  • 1 head garlic, halved crosswise

  • 3 sprigs rosemary

  • 225 g unsalted butter, room temperature, cut into pieces

  • freshly ground black pepper

  • a potato ricer or food mill fitted with fine disk

How to make Ultra-creamy mashed potatoes

  1. Place the potatoes in a large pot and cover them with cold water by approximately 2.5 cm.

  2. Add a large handful of salt, ensuring the water tastes briny, like the sea, and bring to a boil.

  3. Reduce the heat and simmer the potatoes for 30–35 minutes, or until they are very tender but not crumbly.

  4. Drain the potatoes and briefly rinse them with cool water to remove any excess starch. Return the potatoes to the warm pot (off heat) to dry while you prepare the milk mixture.

  5. Warm the milk, single cream, garlic, and rosemary sprigs in a small saucepan over medium heat for about 5 minutes, or until fragrant. Remove the pan from the heat.

  6. Pass the hot potatoes through a ricer or food mill into a large bowl (cold potatoes will become gummy).

  7. Add the butter and 4 teaspoons of salt to the potatoes, stirring until the butter is completely incorporated.

  8. Strain the warm milk mixture through a fine-mesh sieve into a large measuring jug. Pour the strained mixture into the potatoes, 120 ml at a time, stirring after each addition until fully incorporated and the mixture is smooth before adding more.

  9. Serve the mashed potatoes topped with a few grinds of pepper.

  10. If preparing in advance, the mashed potatoes can be made up to 1 day ahead. Cover and chill in the fridge. To reheat, warm over medium heat, stirring often, and add 60 ml of milk or stock to thin out if needed.

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.

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Article history

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

  • 6 Oct 2025 | Originally published

    Authored by:

    UK recipe editors

    Peer reviewed by

    UK recipe editors
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