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Crispy Sweet Potato Wedges

How do you get sweet potato fries or wedges crispy? This is a question I get asked a lot, I learnt to do it in work so had no idea so many struggled to make them crispy.

The secret is to add the salt and hour before so it helps drain moisture from the sweet potatoes then to add the rest of the seasoning and allow sit for another hour and then add a little cornflour before baking and finally to bake them on baking parchment or grease proof paper.

Sweet potato wedges count as part of your 5 a day and are far healthier than regular fries esp when baked like done here.



1 or 2 big sweet potatoes washed

2 tbsp cajun seasoning or paprika

1 tbsp salt

2 tbsp cornflour

2 tbsp rapeseed oil, sunflower or vegetable will also do

Baking parchement or grease proof paper is essential to get the wedges crispy



Take the top and tail off the sweet potato if you preper a more even shape. I left them on. Cut in half and cut into wedges, nice big ones are best just make sure they are evenly sized


Mix the salt with the wedges, lay on kitchen paper, cover and allow sit at room temperature for 1 hour.


Mix the rest of the seasoning with the wedges either in a bowl or freezer bag, set to one side for 20 minutes or up to 1 hour.


Preheat your oven to 200c or GM6.
Add the cornflour to the wedges and mix well.


Mix the oil with the seasoned wedges then lay on a baking tray lined with baking parchement.


Make sure you leave space between each wedge so the air can flow around them or they won’t go crispy.


Keep and eye on them without opening the oven if possible. Turn them after about 20 minutes then bake for 10 to 20 more until they turn crispy.


They will brown and blacken in places which is normal.


Allow rest for 5 minutes then serve with your favourite BiaMaith burger, curry or on their own with a dip.

    • Bridie
    • 20th May 2018

    Hi I am I making your wedges this evening along with your pork and apple burgers I’m just wondering the oven temperature is that 200 conventional oven or 200 fan please

    1. All our temperatures are for fan ovens. Increase by 20C for convection ovens.

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