Sweet Potato Fries | Slimming World & Weight Watchers Friendly

Why not switch up your chips with these Sweet Potato Fries? Great when counting calories or following plans like Slimming World and Weight Watchers!

sweet potato fries

For the full list of ingredients and comprehensive instructions, please see the recipe card at the end of this post. Before you scroll, there’s important stuff in the blurb 👍

Everyone loves chips, and they are easy to incorporate into your weight loss plan with a few tweaks. Those following Slimming World are especially fond of chips and wedges as they can be enjoyed Syn Free if you use low calorie cooking spray to get them crispy!

We have a few recipes that are really popular, including these scrummy Syn Free Slimming World Chips.

Sweet Potato Fries | Slimming World & Weight Watchers Friendly

After a naughty visit to a pie-based restaurant in Cardiff, I realised that I could use the same method for some Syn Free Sweet Potato Fries.

sweet potato fries

I actually prefer sweet potato chips for a few reasons:

  1. They taste AMAZING and have a wonderful texture.
  2. You never have to par-boil because they are naturally softer.
  3. They look so damn pretty!

sweet potato fries

You could have these with our Melt-in-the-middle Burgers and a big salad for a really naughty tasting treat! Or, you could try them as a side for some Meatball Marinara Sliders… DROOL!

sweet potato prep

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Sweet Potato Fries

Votes: 32
Rating: 4.41
Rate this recipe!


Prep Time

Cooking Time

people 5 minutes 45 minutes



Slimming World 

215kcal 5

Smart Points (Flex/Freestyle)



Per people Per people Per people
Please Note - If portions are changed, then points/values will not change and will need to be worked out by yourself. We're working on this!
Please don't take a screenshot. These recipes are updated often!
if you get a blank screen when printing, please open the website in a browser & not the facebook app.

  1. Grab as many potatoes as you need. We tend to use 1 large- 2 medium per person.
  2. Chop your potatoes into chip shapes. (If you want to be really particular you can and cut them into perfect rectangles to make nice straight chips).
  3. Cover a baking tray with tin foil and spray liberally with low calorie cooking spray.
  4. Add your chips to the tray, spray with more low calorie cooking spray and shake over plenty of Schwartz Perfect Shake 'chips'.
  5. Bake at 180 (fan) for about 45 - 60 minutes. Keep an eye on the chips as sweet potato does catch very quickly- turn the heat down and cook for longer if you need to.
  6. When the chips are nearly done, spritz them with a little extra low calorie cooking spray before returning them to the oven for the last few minutes.

If you make this recipe, snap a pic and hashtag it #pinchofnom — We love to see your creations on InstagramFacebook, & Twitter!


We use a fan assisted oven for all of our recipes. Need help converting the temperature for your oven? 

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Syn values given are correct at time of writing but may not always be accurate.

This website is UNOFFICIAL and in NO WAY part of or representative of Slimming World. 

We aren’t trained by Slimming World nor authorised to give Slimming World advice. Any advice given here should not replace the advice of your Slimming World consultant.

Ideally, you should check with Slimming world for the most up to date Syn values using official resources such as; the Syns calculator, Syns Online on LifelineOnline or by calling the Syns Hotline on (0906) 851 8518.

Although pinchofnom.com attempts to provide accurate nutritional information, these figures should be considered estimates. Varying factors such as product types or brands purchased, natural fluctuations in fresh produce, and the way ingredients are processed change the effective nutritional information in any given recipe. Under no circumstances will pinchofnom.com be responsible for any loss or damage resulting for your reliance on nutritional information.

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  • You don't reproduce the recipe in full
    1. Hi Joan
      It seems that the nutritional calculator wasn’t dividing the total calories between the number of portions. This has now been fixed

    1. Hi Charlie
      We haven’t given these a freezer symbol, as we haven’t tried freezing them. I’m not sure how successful they’d be.

    1. Hi Jayne
      As we point out in the recipe blurb, you don’t need to par-boil the sweet potato, as it’s softer and cooks faster that regular potatoes.

  1. Hi,
    No matter how I try I cannot get my sweet potato fries to crisp . They are either soggy or then I leave them longer and they just burn???

    1. Hi Hayley
      Sweet potatoes don’t tend to crisp up as much as normal potatoes. You don’t need to par-boil them prior to cooking, then spray with frylight and cook. I often do them at a slightly lower temperature and leave them in a bit longer. 🙂

  2. Im like you and cut my chips all uniform and perfect rectangles discarding the uneven ends lol im so glad im not the only one thats so OCD and classed as anal pmsl 🤣🤣🤣 thanks for the chip seasoning recipe I made my own with all the herbs and spices in my cupboard…have to say worked well too 😉

  3. I always find that half of mine are still hard in the middle how can i stop that from happening? As i end up throwing away half of them as i cant eat them hard

    1. You could try cutting them a little thinner, or part cooking them in the microwave for a few minutes before putting in the oven 🙂

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Slimming World Recipes
A blog started by 2 chefs on their Slimming World journey, evolving into an epic adventure shared by many!