No-Fry Crispy Sweet Potato Fries

Sweet potato fries done in the oven. A no-fry method that can be done in the oven.

I think I’ve nailed the trick to crispy no-fry sweet potato fries.

Getting sweet potatoes crispy without frying them can be near impossible. And sometimes deep frying in your kitchen (the smell) is just a no-go. Although oven baked sweet potatoes will never be quite as good as the fried ones, it’s so much easier to clean up a tray than a whole deep-frier/large pot of oil. Also the slightly charred and blistered outside with the mashy interior of the sweet potato fries is just too good.

What’s the secret?

There’s two little things that make a HUGE difference to the crispiness of sweet potato wedges. Firstly, you must never overcrowd the pan. When you pile a pan full of vegetables (or anything for that matter) and overcrowd it, you prevent airflow in the oven end up steaming instead of roasting. So make two trays instead of one the next time you roast some vegetables and you will be surprised how much better it turns out.

Secondly, cornstarch. Something special happens when you use cornstarch and it results in an extra crispy exterior. Dusting the sweet potato wedges with regular flour will not be the same. I’ve also experimented with potato starch which was okay but cornstarch is still the winner.

Spicy Mayo

I think sweet potato fries with spicy mayo is a necessary obligation here. Then again, I do put spicy mayo on everything…

Go here if you want the recipe for the spicy mayo.

Sweet potato fries done in the oven. A no-fry method that can be done in the oven.

No-Fry Crispy Sweet Potato Fries

The secret to oven baked sweet potato fries. Crispy on the outside and mashy on the inside and preferably served with spicy mayo.
5 from 5 votes
Prep Time 5 mins
Cook Time 20 mins
Total Time 25 mins
Course Appetizer, Side Dish
Cuisine American
Servings 2
Calories 473 kcal


  • Metal Tray
  • Mixing bowl
  • paper towel


  • 2 whole sweet potatoes large
  • 100 g peanut oil or vegetable oil
  • 2 g salt
  • 16 g cornstarch
  • 1 spicy mayo recipe


  • Set oven to 225C/425F with the fan on full blast.
    Wash and peel the sweet potato. Cut into thick wedges.
    Cutting the sweet potatoes into wedges
  • Season the fries with salt and toss. Add the cornstarch and toss well.
    tossing the sweet potatoes in cornstarch
  • Get two trays and line them with parchment paper. Add the oil and spread across the two trays. Line up the dusted sweet potato fries across the two trays.
    Lining up the sweet potatoes on trays with oil
  • Roast the sweet potatoes in the oven for 10 minutes. Then turn each wedge over on the tray and put back in the oven until nicely coloured and crispy. Aprox. 5-10 minutes more.
  • Season the fries with a bit more salt and drain on paper towel. Serve right away.
    Sweet potato fries done in the oven. A no-fry method that can be done in the oven.


Be careful not to burn yourself when removing the trays from the oven because of the hot oil. 
Serve right away as the crispiness does not last long. 
Keyword baked sweet potato, no-fry sweet potato, oven baked sweet potatoes, sweet potato fries, sweet potato oven recipe, sweet potato wedges, sweet potatoes

Have you tried this chocolate chip cookie recipe?→





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