The BEST Crispy Homemade Sweet Potato Fries Recipe (2024)

FAQs

How to get sweet potato fries to crisp? ›

Give them a cold water bath: Once your fries are chopped, toss them into a large bowl. Then cover the fries completely with cold water and let them soak for at least 30 minutes (or up to overnight). This will help to rinse off the excess starch and help the potatoes crisp up beautifully in the oven.

The secret to crispy (instead of soggy) sweet potato fries is to spread them out in an even layer with enough room so that they don't touch. This is especially important if you're making a big batch of fries. Instead of just piling more onto one baking pan, spread them out over two baking pans or cook them in batches.

Sweet potato fries are slightly higher in calories and carbs but also more nutrient dense than French fries. The greatest nutrient difference is that French fries have no vitamin A, while sweet potato fries are high in this nutrient. Vitamin A is important for your vision and immune system ( 2 ).

If you'd like, you can soak the sweet potato slices for 30 minutes up to 2 hours before frying to remove excess starch. Personally, though, going through this step didn't make a real difference for my fries. Peels on or off — it's up to you!

As oil heats up it breaks down—cooking oils with a high smoke point will break down more slowly—and that creates crispier fries. The general rule of thumb is that you can reuse frying oil three or four times, or for a total of six hours cooking time.

Corn Starch: Adding a thin coating of corn starch to the potato fries before frying can help create a crispier exterior. When the corn starch comes into contact with the hot oil, it forms a barrier that traps moisture within the potato while also developing a crunchy crust.

Soggy fries have usually either been cooked in oil that isn't hot enough, or were cooked in too large a batch, overcrowding the pan and reducing the heat. The secret to getting tasty French fries that are crisp on the outside and nice and fluffy on the inside is to fry them twice.

Banish Soggy Sweet Potato Fries.

The sweet potatoes steam when crowded together, instead of air frying. For the best, most crispy results, cook the fries in a single layer so that the air has room to circulate.

Sweet potato fries at a restaurant also land in the 400-calorie neighborhood, and the fat content also averages 20 grams; sodium can add up quickly. Winner: Homemade and baked is always the way to go, and if that's how you make your fries, mix it up with both white and sweet potatoes.

Before all that, though, the secret is to briefly poach them in boiling water (or "blanch" them) before they go into the hot oil. This ensures that the fries are cooked all the way through before getting crisped up in the fryer.

What happens if you don't soak sweet potatoes? ›

However, when it comes to using soaking as a means to prevent oxidation, it's unnecessary to soak sweet potatoes. Sweet potatoes can be diced or peeled, and stored in the refrigerator for several days without changing color. White and yellow potatoes, on the other hand, will oxidize much easier.

I wouldn't bother doing potatoes from the raw state, without soaking. It will take about a half an hour and the texture won't be nearly as rewarding. They just don't get very crispy without that cold soak.

Why do my air fryer sweet potato fries turn black? Sweet potatoes contain a higher concentration of sugar than standard potatoes, and caramelize as they cook in the air fryer. If you find the fries are darkening too quickly or deeply, cook at a lower temperature, or for a shorter period of time.

If they are still not crispy you might have skipped a step or you might not have let them cool down sufficiently. Make sure to cool them in a single even layer and also make sure that the oil has the right temperature. Or maybe you've used the wrong potatoes to make them.

Fries have a very high starch content. When they are cooked at high temperatures, they absorb moisture which gives them their signature crispy exterior. When they are left out to cool, the starches secrete moisture, which eventually makes the fries' crust soggy.