This perfect mashed potato recipe delivers exactly what you want — smooth, creamy mashed potato that's fluffy, buttery, and holds its shape on the plate. If you've ever ended up with gluey, watery, or lumpy mash, this guide will show you how to make mashed potato properly using the right potatoes, the correct technique, and a few clever tricks. I'm having mash this evening with lomo de cerdo and raspberry coulis, and it should pair beautifully. The richness of butter against the sweet-savoury coulis and the lean pork – the whole thing coming together on one plate – that's what good home cooking looks like.

And as there's no football this afternoon that I want to watch, I'm going to prepare my mash now. I might make the coulis too, and maybe parboil the green beans, making it particularly easy to cook my lomo and finish off this evening without any last-minute panic. Sometimes the best meals are the ones where you've done the thinking beforehand.

This recipe uses almond milk mashed potato rather than dairy, which means a slight adjustment in technique, but the results are just as good – creamy, fluffy, and properly indulgent. It's accidentally vegan mashed potato (if you swap the butter for plant-based), and the addition of olive oil mashed potato gives it a restaurant-quality finish.

Ingredients (Serves 1)

• 300-350g floury potatoes (Maris Piper, King Edward, or any "para cocer" potato in Spain)
• 40-50g butter (don't be shy — this is where the flavour lives)
• 3-4 tbsp unsweetened almond milk
• 1 tbsp extra virgin olive oil
• Sea salt and white pepper

How to Make Perfect Mashed Potato recipe

Choose the Right Potatoes for the Perfect Mashed Potato recipe

This is non-negotiable. Floury or starchy potatoes are what you need – they break down into a light, fluffy mashed potato. Waxy potatoes (the ones sold for salads) will give you gluey, disappointing results no matter how carefully you cook them. Look for Maris Piper or King Edward in the UK, or anything labelled "para cocer" (for boiling) in Spanish supermarkets. Using the best potatoes for mashing is the foundation of good mash.

Cook the Potatoes Properly

Peel the potatoes and cut them into even chunks – roughly the same size so they cook at the same rate. Put them into a pot of cold, salted water. Starting in cold water means they cook evenly all the way through rather than turning to mush on the outside whilst staying hard in the middle.

Bring to the boil, then reduce to a gentle simmer. Cook for 15-20 minutes, depending on the size of your chunks. Test with a knife — it should slide through with no resistance at all. If there's any firmness, keep going.

When they're done, drain them thoroughly. This matters more than you'd think and prevents watery mashed potato.

The Secret Step: Steam Dry Your Potatoes

Here's the bit most people skip: put the empty pot back on the lowest heat and tip the drained potatoes back in. Give them a gentle shake for 30-60 seconds. You'll see steam rising off them. This step evaporates any excess moisture clinging to the surface, and it's the difference between fluffy mashed potato and something that tastes a bit watery and sad.

Mash While Hot for Smooth Results

Use a potato masher or a ricer if you've got one. Never use a food processor — it breaks down the starch too much and turns the whole thing into wallpaper paste, giving you gluey mashed potato. Mash until completely smooth with no lumps. Work quickly whilst the potatoes are still hot, as this makes everything easier and helps you achieve smooth mashed potato.

Add Fats and Liquid (In the Right Order)

This is where mashed potato technique really matters.

1. Beat in the butter first. The butter needs to melt into the hot potatoes and coat the starch. This is what makes buttery mashed potato rich and prevents it from going gluey when you add liquid.
2. Warm the almond milk slightly — 20 seconds in the microwave is fine. Cold liquid cools the potatoes down and makes them harder to work with.
3. Add the almond milk gradually, beating as you go. You're looking for creamy, not sloppy. It's easier to add more than to fix mash that's gone too thin.
4. Drizzle in the extra virgin olive oil whilst beating. This adds a lovely richness and silky texture that compensates for almond milk being thinner than dairy. Mashed potato with olive oil has become popular in upscale restaurants.
5. Season generously with salt and white pepper. Potatoes need more salt than you think. Taste as you go.

Beat It for Fluffy Texture

Use a wooden spoon and beat the mash vigorously for 30-60 seconds. This incorporates air and makes everything lighter and fluffier. The finished mash should be smooth, creamy mashed potato that's able to hold its shape when you lift it with a spoon. It should have a slight glossy sheen from all that butter and oil.

Making Dairy-Free Mashed Potato recipe with Almond Milk

Almond milk mashed potato behaves differently to dairy milk – it's thinner, has less fat and protein, and doesn't add the same richness. But you can work around this easily to create dairy-free mashed potato that's just as good:

• Use more butter. Don't be timid. 50g of butter for 350g of potatoes isn't excessive; it's correct. (For vegan mashed potato, use plant-based butter.)
• Add the extra virgin olive oil for depth and a silky mouthfeel.
• Use less almond milk than you would dairy milk — add it gradually and stop when the consistency is right.
• If you've got nutritional yeast in the cupboard, a small pinch adds a subtle savoury depth that works beautifully in plant-based mashed potato.

The EVOO addition isn't just a workaround — some high-end restaurants finish their mash with olive oil rather than cream. It adds a flavour dimension that's quietly elegant without being showy.

What Perfect Mashed Potato Should Look Like

Your best mashed potato should have these qualities:

• Holds a peak when lifted with a spoon
• Smooth and creamy, not runny or watery
• Glossy sheen from the fat
• Not gluey or sticky (which happens from overworking or using the wrong potatoes)

Too thick? Add more warm almond milk, a tablespoon at a time, beating between additions.

Too thin? You can't really fix watery mashed potato, but you can keep it warm uncovered for a few minutes to let some steam evaporate.

Common Mashed Potato Mistakes to Avoid

These are the most frequent mashed potato mistakes that ruin otherwise good spuds:

• Using waxy potatoes instead of floury potatoes for mash
• Not draining the potatoes properly (causes watery mashed potato)
• Adding cold liquid (makes them harder to work with)
• Not using enough fat (makes them dry and bland)
• Overworking the mash (causes gluey mashed potato)
• Under-seasoning (potatoes need generous salt)

How to Keep Mashed Potato Warm (Make Ahead Tips)

Make ahead mashed potato keeps well if you're preparing it in advance, which I often do when I want to enjoy the meal rather than faffing about at the last minute. Here's how to keep mashed potato warm:

• Keep it in the pot with the lid on over the lowest possible heat.
• Alternatively, place the pot in a larger pot with gently simmering water (a bain-marie).
• Give it a stir before serving and add a small knob of butter on top.

Your restaurant quality mashed potato will sit happily for 20-30 minutes without any loss of quality, which means you can focus on getting your main course exactly right.

This perfect mashed potato recipe is part of the Potato Hub — a complete collection of potato recipes from The Flexible Chef. Explore the full collection

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