I’m not one for bragging, but I do know for sure that I make amazing roast potatoes. So for day 17 of my Sensitive Foodie Advent Calendar, I’m giving you my top tips for getting perfectly crunchy crispy spuds without really making that much effort.
I honed my roast potato skills soon after I left home to do my nursing training. I always seemed to be on a diet – often that was Rosemary Conley’s Hip and Thigh Diet, a low fat programme. Looking back now, I realise that there was a lot missing from this way of eating, but then hind-sight is a wonderful thing. But it did introduce me to dry roast potatoes.
If you search how to cook roast potatoes, there are a multitude of opinions on what fat to use, and how much. Ranging from normal vegetable oil to expensive goose or duck fat, the aim of the fat is to create a crispy outside and a soft fluffy potato on the inside. Using large amounts of fat on a high oven heat means that large amounts of liquid fat gets absorbed into the potato, which then gets absorbed into you. This high heat can also damage fat structure, which is not good for your body.

I have been making roast potatoes without all this fat for so long that I find I don’t really enjoy them when we eat out purely because they often seem overcooked and all I can taste is the fat. Since I’ve been following a whole-food plant-based diet it seems even more of a problem as my taste-buds have completely changed. And for anyone who follows a special diet like the Overcoming MS programme, fat soaked potatoes are off the menu.
Rather than the fat being key, for me it’s the potato, and how it is prepared before it goes into the oven. Most recipes suggest par boiling potatoes, but often this isn’t enough. You want the surface structure to be breaking down properly before going in the oven – this is what goes all crunchy once roasted. And you don’t need lots of fat to do it.
So here are my top tips. If you don’t already roast your spuds this way, why not give it a go this Christmas? And don’t forget to let me know how you get on.
- Use floury potatoes not waxy. Maris Piper or King Edwards are the best. Also try to by organic or more naturally grown ones. They taste better too.
- Don’t make them too big or too small. And try to keep them a similar size. I find medium-sized chunks work best.
- Boil the potatoes so they are properly cooked. Keep an eye on them though as you don’t want them to fall apart into mush. Boiling time will depend on the type of potato and how many you have in the pan. Once they’re beginning to be flaking on the outside and you can easily pierce them with a knife, turn off the heat.
- Drain as soon as the heat if off. Give them a good shake to clear away excess water and break the surface a bit more. If they are still a little soggy, pop them back in the pan on a low heat for a minute to dry off.
- Make sure the oven is pre-heated at 200ºC. Fan ovens work best, but electric and gas still produce good potatoes. I can’t comment on an AGA.
- Use a good, non-stick baking tray with no scratches. You can pre-heat it if you like, but I tend to forget so it’s not necessary.
- Tip the potatoes onto the baking tray and give it another shake. You can add a little oil now if you like. I tend to use a few squirts of an olive oil spray just to mist the top.
- Pop the tray in the oven and let the potatoes roast for 15 minutes, then remove the tray and turn the spuds. You will see a lovely golden crust forming when you turn. Move them around the tray if you need to if the outside ones are cooking faster than the inside ones. Return to the oven for another 10 minutes or until they are all crispy and brown.
- Remove from the oven and transfer to a hot dish. Serve straight away and enjoy that lovely crunch without the grease.
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