The best crispy roast potatoes – an essential component of any roast dinner! Plus tips on making ahead!

Roast potatoes with salt and fresh thyme leaves
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You know when you go to a restaurant for a sunday dinner, how disappointing is it when the roasties aren’t crispy! They’re just a bit browned and chewy at the edges, instead of having that satisfying crunch. So disappointing!!

Nope, give me homemade roasties any time. I want that crunchy exterior you can only get from fluffing up those edges and letting them bubble away in hot fat, with a fluffy, light interior.

And the crispy bits in the bottom of the roasting pan? I want those too. Eaten with a sprinkling of salt flakes. They’re the bonus bits. Salty, crispy morsels, that crunch all the way through when you bite into them.

It’s amazing how much a potato cooked in oil with salt can make me salivate at my keyboard.

How to make Roast Potatoes

We start by boiling the potatoes in plenty of water for about 8-9 minutes. This may sound like a long time to par-boil potatoes, but this is how you get the extra fluffy edges that will crisp up in the oven later.

peeled and chopped potatoes in a pan

Drain the potatoes in a colander and give them a really really good shake – so it looks like they’re on the verge of falling apart.

Boiled Potatoes being shaken in a colander

Place in shimmeringly hot oil in the oven for 30-35 minutes, turning once or twice until crisp, crunchy and golden.

Potatoes in the oven in duck fat for roasting

Sprinkle with Maldon salt (the BEST for roasties) and a few fresh thyme leaves.

Roast potatoes with salt and fresh thyme leaves

These roast potatoes are part of my ‘How to make a Roast Beef Dinner step-by-step timeplan‘ post.

Overhead image of roast beef dinner

Check it out for easy to follow instructions on making a mouthwatering roast beef dinner!

What goes well with Roast Potatoes?

4.96 from 43 votes

Crispy Roast Potatoes Recipe

Perfect roast potatoes -fluffy inside with a crunchy exterior. Part of my step-by-step guide for making a delicious roast beef dinner.
Prep Time: 10 minutes
Cook Time: 50 minutes
Total Time: 1 hour
Servings: 4
Course: Sides
Cuisine: British


  • 1 kg (2.25 lbs) floury potatoes – such as Maris Piper or red-skinned Rooster potatoes
  • 120 g (1/2 cup) lard or duck fat (use vegetable oil instead for a vegetarian version)
  • 1 tsp Maldon salt
  • 1 tbsp fresh thyme leaves
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  • Preheat the oven to 220C/425F (fan).
  • Peel the potatoes and chop them into chunky pieces a little bigger than a ping pong ball (approx 2 inches/5cm across).
    1 kg (2.25 lbs) floury potatoes
  • Place in a pan and cover with cold water. Place on the hob on a high heat and bring to the boil, then turn down the heat and simmer for 8-9 minutes – until softened at the edges.
    * Tip 1
  • Meanwhile, place the lard or (goose fat if using) in a large roasting tin and place in the oven for 10 minutes until shimmering hot.
    120 g (1/2 cup) lard or duck fat
  • Drain the potatoes in a colander
    *Tip 2
    , and give them a good shake to really roughen up the edges. Don't worry if a few break apart and they look overly fluffy. The more fluffy they are, the better they'll absorb the fat and the crispier they'll be.
  • Carefully place the potatoes – using tongs – in the baking tin with the hot fat. Turn them over once to coat in the fat and then place them in the oven.
  • Cook for 30-35 minutes, turning once or twice in the last 15 minutes of cooking, until golden brown and crispy.
  • Remove from the roasting tin and serve topped with a sprinkling of Maldon salt and some fresh thyme leaves.
    1 tsp Maldon salt, 1 tbsp fresh thyme leaves



*Tip 1

8-9 minutes might seem like a long time to par-boil potatoes, but it’s only after this amount of time that the potatoes will be cooked and tender at the edges. This will allow the edges to fluff up a lot when shaken. These fluffy bits at the bits that will go extra crispy in the oven.

*Tip 2

Don’t tip away the potato water, save it (and any other vegetable cooking/steaming water) to make your gravy. I add a stock cube or two to the roasting juices from the meat (to make the gravy stretch further), then stir in around 2-3 cups (480-720ml) of vegetable water with a good pinch of salt and pepper, bring to the boil and stir in a little cornflour/cornstarch slurry to thicken. Delicious!

Making mashed potatoes too?

I boil the chopped potatoes for my roasties and mash in the same pan at the same time. Then after 8-9 minutes, I use a slotted spoon to scoop out the potatoes for the roasties.
The potatoes left in the pan are cooked for another 5 minutes or so until tender, before being drained and mashed with butter, cream, salt and pepper. I then cover the mash and put to one side whilst the roasties are in the oven, and reheat the mash in the microwave right before serving.

Make ahead Roast potatoes:

I do this if I want to get ahead or if I’m making a roast dinner for more than 6 people. 
Follow the recipe in the same way (increasing the amount of potatoes and fat to the same ratio if you’re cooking for more people), but just roast the potatoes  for 20 minutes – or until lightly golden.
Then remove the potatoes from the fat and place in a bowl to cool. Cover and refrigerate for up to a day. Cool and cover the fat too.
When you’re ready to finish the potatoes, heat the fat in the oven at 220C/425F for 10 minutes, then add the potatoes back in and cook for 20-30 minutes, turning once, until golden.
This method works particularly well when you’re cooking for more people, as the more potatoes you’re roasting in the pan, the longer the potatoes take. So having them par-roasted means they should take no longer than 30 minutes to finish off.
Nutritional information is per serving.
Note – the roast potatoes don’t absorb all of the fay, so I’ve halved the amount of fat for the calculation (this is approximate).


Calories: 279kcal | Carbohydrates: 31g | Protein: 6g | Fat: 15g | Saturated Fat: 5g | Cholesterol: 15mg | Sodium: 606mg | Potassium: 1043mg | Fiber: 6g | Vitamin A: 85IU | Vitamin C: 31.3mg | Calcium: 82mg | Iron: 8.4mg

Nutrition information is automatically calculated, so should only be used as an approximation.

More Delicious Potato Side Dishes

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Hi, I'm Nicky and I love to cook! I want to share with you my favourite, delicious family friendly recipes. I want to inspire you to create fantastic food for your family every day.

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    5 stars
    Great – really works but you get a strange pre-boiled potato flavour if you make in advance

  2. Jenni C says:

    5 stars
    WOW. This actually works perfectly. As we were going through it I was thinking “no way is this going to work like it’s supposed to” but my god it does! Everything just finished cooking right on time, at the same time. It’s going to be easier the second time we do it too. The potatoes were the star of the show. We didn’t bother with the gravy and just used a packet of gravy which we added the beef drippings too (shame on us). Thanks for the recipe! Absolutely spot on!


    5 stars
    I make the best roast potatoes ever and this is exactly what I do – might take more than 8 minutes tho and make sure the water has enough salt in –

  4. Mrs M M Hardman says:

    Like it alot.

  5. LaTanya says:

    Soooooo yummy! I love par-boiling then roasting the potatoes! Such a great technique. Thank you for this recipe! They were fluffy yet crispy at the same time…Genius!

  6. Jo Vanderhelm says:

    5 stars
    Perfect potatoes. I even forgot the salt and thyme as I was distracted by the yummy potatoes. Of all the fancy dishes at Christmas, this simple potato dish got all the compliments. People were fighting over the last ones! One guest said “I’m saving my potatoes for last so I can savour them”. My go to from now on.