This comforting James Martin-style mashed potato is everything you want from a classic side dish. It is silky smooth, rich with butter, and perfectly seasoned for a luxurious finish. The texture is creamy without being heavy, making it ideal for both everyday meals and special occasions. It is a very easy recipe that comes together in around 30 minutes.
Ingredients
For the mashed potatoes
- 1kg Maris Piper or King Edward potatoes, peeled and chopped
- 100g unsalted butter
- 100ml whole milk
- 50ml double cream
- Salt, to taste
- Freshly ground black pepper, to taste
How to Make James Martin Mashed Potato
- Prepare the potatoes: Place the peeled and chopped potatoes into a large saucepan. Cover with cold salted water and bring to the boil over medium heat.
- Cook until tender: Reduce to a simmer and cook for 15 to 20 minutes until the potatoes are soft and easily pierced with a knife.
- Drain and dry: Drain the potatoes well, then return them to the hot pan over low heat for 1 to 2 minutes to remove excess moisture.
- Heat the milk and butter: In a small saucepan, gently warm the butter, milk, and cream together until the butter has melted. Do not let it boil.
- Mash the potatoes: Mash the potatoes using a potato masher or ricer until smooth and lump-free.
- Combine and season: Gradually add the warm butter mixture into the potatoes, stirring until fully combined and creamy. Season generously with salt and black pepper.
- Serve: Spoon into a warm serving dish and serve immediately for the best texture and flavour.

Tips
Why are my mashed potatoes gluey?
This usually happens when potatoes are overworked. Mash gently and avoid using a blender or food processor.
Which potatoes are best?
Floury varieties like Maris Piper or King Edward give the fluffiest and smoothest results.
Should I add cold or warm milk?
Always use warm milk and butter. This helps the potatoes absorb the liquid evenly and keeps them creamy.
How can I make them extra smooth?
Use a potato ricer instead of a masher for a finer, smoother texture.
Serving Suggestions
- Serve alongside roast chicken or beef
- Pair with sausages and gravy
- Top a shepherd’s pie
- Enjoy with steamed vegetables
Storage
Room temperature
Mashed potatoes can sit out for up to 2 hours. After this, they should be refrigerated.
Refrigerator
Store in an airtight container for up to 3 days. Reheat gently with a splash of milk.
Freezing
Freeze in portions for up to 1 month. Thaw overnight and reheat slowly, stirring well to restore the texture.
Nutrition
- Calories: 280 kcal
- Carbohydrates: 32g
- Protein: 4g
- Fat: 15g
- Saturated Fat: 9g
- Sodium: 220mg
These values are approximate and may vary depending on ingredients used.
FAQs
Can I make mashed potatoes ahead of time?
Yes, you can prepare them a few hours in advance. Keep them warm in a covered bowl over a pan of hot water or reheat gently before serving.
Can I use olive oil instead of butter?
You can replace butter with olive oil for a lighter version, though the flavour will be less rich and creamy.
How do I reheat mashed potatoes without drying them out?
Reheat slowly on the stove or in the microwave, adding a little milk or cream to bring back the creamy texture.
Can I add garlic or herbs?
Yes, roasted garlic, chives, or parsley can be added for extra flavour without overpowering the dish.
James Martin Mashed Potato
Course: Side DishCuisine: BritishDifficulty: Easy4
servings30
minutes40
minutes300
kcal1
hour10
minutesCreamy, buttery mashed potatoes inspired by James Martin. Smooth, rich and perfect as a comforting side dish for any meal.
Ingredients
1kg potatoes, peeled and chopped
100g unsalted butter
100ml whole milk
50ml double cream
Salt, to taste
Black pepper, to taste
Directions
- Place potatoes in salted water and bring to the boil.
- Simmer for 15–20 minutes until tender.
- Drain and return to pan to remove moisture.
- Warm butter, milk and cream together.
- Mash potatoes until smooth.
- Stir in warm butter mixture and season.
- Serve immediately while hot.
Notes
- Use floury potatoes for best texture.
- Always add warm milk for smooth mash.
- Avoid overmixing to prevent gluey potatoes.
