There’s something irresistible about sweet potato fries. Crispy on the outside, soft in the middle, and naturally sweet, they’re a healthier alternative to regular chips that feel like a treat.
Making them in the air fryer cuts down on oil, keeps things simple, and makes them perfect for everyday Slimming World-friendly meals. Whether you want them as a side dish, snack, or part of your weekly meal plan, this recipe will quickly become a favourite.
Sweet potatoes are naturally rich in fibre, vitamins A and C, and antioxidants, making them a nourishing addition to your meals. They’re slightly lower in calories than regular potatoes and have a lovely caramel-like flavour when cooked.
The air fryer helps lock in that sweetness while giving you the crisp finish you’d normally expect from chips. Because you only need a small amount of oil spray, the fries stay lighter without losing texture or taste.
For Slimming World members, sweet potato fries are a lifesaver because the base ingredient is free food, and only the oil spray needs counting. That means you can enjoy a generous portion without feeling like you’re going off-plan.
This recipe serves 2 people as a main snack or 4 people as a side dish.
So if you add cornflour, this recipe is just ½ syn per serving. Without it, it’s completely free.
Wash and peel your sweet potatoes. Slice them into even-sized fries, about 1cm thick. Try to keep them similar in size so they cook evenly.
Pat the fries dry with kitchen paper to remove moisture. This helps them crisp up in the air fryer.
Place them in a bowl and sprinkle over the cornflour, paprika, garlic powder, onion powder, salt, and pepper. Toss until coated. Lightly spray with cooking spray and mix again.
Preheat your air fryer to 200°C (390°F) for 3 minutes.
Place the fries in the basket in a single layer (you may need to cook in batches). Air fry for 15–18 minutes, shaking halfway through to make sure they cook evenly.
Once golden and crisp, remove from the air fryer and serve hot. Add a sprinkle of extra salt or even some fresh parsley if you like.
These fries are so versatile. You can enjoy them on their own with a dip, or serve them alongside lean protein like grilled chicken, salmon, or even a veggie burger. If you’re planning a Slimming World-friendly fakeaway night, pair them with a homemade chicken wrap or an air fryer burger.
For dips, you can try:
Slimming World is all about balance and making smart swaps. By air frying instead of deep frying, you save hundreds of calories and loads of syns. Sweet potatoes are naturally free on the plan, so you’re only counting a fraction of a syn if you add cornflour.
That means you can fill your plate with something that feels indulgent without compromising progress.
Sweet potato fries are best eaten straight from the fryer while they’re crispy. However, you can prepare them in advance by cutting and seasoning the potatoes, then storing them in the fridge (uncooked) for up to 24 hours.
If you have leftovers, store them in an airtight container in the fridge for up to 2 days. To reheat, pop them back in the air fryer for 5 minutes at 180°C – they’ll crisp up again nicely.
Eating healthily doesn’t have to mean giving up comfort foods. Recipes like this show that with a few tweaks, you can enjoy favourites in a lighter way. Sweet potato fries in the air fryer are quick, family-friendly, and completely Slimming World-safe.
Whether you’re preparing a midweek dinner or treating yourself to a weekend snack, they’re a brilliant choice that balances flavour and nutrition.
Air fryer sweet potato fries are a recipe you’ll come back to again and again. They’re easy, satisfying, and fit perfectly into a Slimming World lifestyle.
Next time you’re craving something crispy, skip the takeaway chips and make a batch of these instead – your taste buds (and your syn count) will thank you.
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