I cut into a sweet potato last Tuesday and immediately knew I’d messed up. Too thick on one end, paper-thin on the other. But I was hungry and impatient so I just kept going. Figured the oven would fix it.
The oven does not fix uneven cuts.
Half of them burned to black crisps. The other half were raw in the middle. My kitchen smelled like caramelized failure. I ate the non-burned ones standing over the sink anyway because that’s just who I am as a person.
This is batch number fourteen or something. Not exaggerating. I’ve been chasing that restaurant crisp for months and finally landed on something that actually works. No floppy fries. No steamed orange mush. Just shattery outsides and soft insides that don’t turn into sad piles after five minutes on the plate.
A quick moment before cooking started
I used to just dump cut sweet potatoes straight onto the pan with some oil. That was my whole strategy. Quick and lazy. And every single time I’d pull them out and they’d be this wet, limp mess that stuck to the parchment paper like glue. My husband would poke at them with a fork and say “they still taste good” which is code for “please stop making these.”
The change happened when I accidentally left cut fries sitting in a bowl of cold water while I answered a phone call. Came back forty minutes later, dried them off like a maniac because I was already late making dinner, and those ones actually had edges. Real edges. Not the rounded sad kind.
That’s when I realized I’d been fighting the starch this whole time.
Ingredients I Used for the Recipe
- 2 pounds sweet potatoes – pick ones that aren’t all curvy and weird. Straight ones cut easier.
- 2 tablespoons olive oil – enough to coat but not drown them.
- 2 teaspoons cornstarch – this is the secret. I skipped it for years. Don’t skip it.
- 1 teaspoon garlic powder – because plain fries are boring.
- 1 teaspoon paprika – regular or smoked. Both work.
- 1 teaspoon salt – plus more at the end because I always undersalt the first time.
- ½ teaspoon black pepper – fresh ground if you care about that stuff.
One time I used onion powder instead of garlic by accident. Still tasted fine. Different but fine. Don’t stress the spices too much.
How to make Crispy Baked Sweet Potato Fries?
Step 1 – Cut them right for once
Peel the sweet potatoes. Or don’t. I’ve done both. The skin adds texture and I’m lazy so I usually leave it on. But if you want that classic fry look, peel them.
Cut off the pointy ends first so you have a stable surface. Then slice lengthwise into planks about a quarter-inch thick. Then cut those planks into sticks. Try to keep them the same size. I’m bad at this. My fries are always a mix of skinny crunchy ones and fat soft ones. But the more uniform you get, the better they bake.
I learned this after that burned batch I mentioned earlier.
Step 2 – The cold water thing
Put the cut fries in a big bowl and cover them with ice cold water. Like actually cold. Throw some ice cubes in there. Let them sit for at least thirty minutes. I’ve done an hour. I’ve done overnight in the fridge. The longer you soak, the more starch comes out.
Why does this matter? Sweet potatoes have way more starch than regular potatoes. That starch traps moisture. Trapped moisture means steamed fries. Steamed fries are the enemy.
Drain them and then dry them like your life depends on it. Lay them out on a clean kitchen towel and pat pat pat. Then let them air dry for five minutes. Then pat again. I used to skip this part and wonder why everything failed. Wet fries = soggy fries. No way around it.
Step 3 – The cornstarch trick
Preheat your oven to 425 degrees. Line two baking sheets with parchment paper. Not wax paper. I made that mistake once and almost started a fire.
Put the completely dry fries in a large bowl. Drizzle with olive oil and toss with your hands. Get in there. Make sure every fry has a little shine.
In a small bowl, mix the cornstarch, garlic powder, paprika, salt, and pepper. Sprinkle this over the fries a little at a time while tossing. The cornstarch will look dusty at first but then it kind of absorbs into the oil. That’s good. That’s what creates the crust.
I forgot the cornstarch once because I was talking to my mom on the phone. The fries came out okay but not great. Missing that extra crunch on the outside. So don’t be me. Don’t multitask this part.
Step 4 – Don’t crowd the pan
Spread the fries out on the baking sheets in a single layer. Leave space between them. If they’re touching, they’ll steam each other. This took me so long to accept because I wanted to bake everything at once. But overcrowding ruins the whole thing.
I bake one sheet at a time on the top rack. The other sheet sits on the counter waiting. Yeah it takes longer. But waiting twenty extra minutes is better than eating floppy fries again.
Step 5 – Bake and flip
Bake for 12 to 15 minutes. Pull the pan out. Flip each fry with a spatula. Some of them will stick a little. That’s fine. Just be gentle.
Bake for another 10 to 12 minutes. Watch them at the end because oven temps vary. My old oven took 15 extra minutes. My new one runs hot and burns things fast. You want dark brown edges but not black.
The first time I made these with the cornstarch method, I pulled them out and just stood there staring. They had actual crust. Like real fry crust. I poked one and it made a sound. A crispy sound. I almost cried.
Tips
- Let them cool on the pan for two or three minutes before moving. They crisp up more as they sit. I learned this after dumping hot fries straight into a bowl and watching them turn into a steamed mess.
- Salt them right when they come out of the oven. Not before. Salt pulls out moisture during baking and works against the crisp.
- If you have a wire cooling rack that fits inside your baking sheet, use it. The air circulation underneath makes the bottom crispy without flipping. I don’t own one but my friend swears by this.
- These do not reheat well in the microwave. Don’t even try. Oven or air fryer only. 400 degrees for about five minutes.
- Make extra because everyone picks at them while you’re trying to plate dinner.
One more thing I almost forgot. The dipping sauce situation. Sweet potato fries are weird because they’re sweet and savory at the same time. Regular ketchup works but it’s not the best. I mix mayo with sriracha and a tiny bit of maple syrup. Sounds gross. Tastes incredible. My husband calls it fancy fry sauce and he’s not wrong.
I made these last week for a friend who said she hated sweet potato fries. She ate half the batch and asked for the recipe. That’s when I knew I’d finally figured it out.
Just don’t skip the soaking part. Please. I wasted so many sweet potatoes being lazy. Learn from my mistakes.
Crispy Baked Sweet Potato Fries Recipe
Description
My absolute FAVORITE Crispy Baked Sweet Potato Fries that are super flavorful and seasoned to perfection! They’re pretty much the best side ever and this version is sweet, savory and absolutely incredible! Enjoy with burgers, steak or as a snack with your favorite dipping sauce.
Ingredients
Instructions
Prep the Oven
Preheat the oven to 425ºF. Line two large, rimmed baking sheets with parchment paper. If you have a wire rack to place on top of the baking sheet, that works even better for circulation.Cut the Potatoes
Peel the sweet potatoes and cut them into fry-shaped pieces about ¼″ wide and ¼″ thick. Try to cut them into similarly sized pieces so the fries will bake evenly.Soak for Crispiness
For extra crispy sweet potato fries, soak uncooked fries in ice cold water for at least 30 minutes. Drain and pat completely dry with paper towels or a clean kitchen towel.Season
Add the dried fries to a large bowl and toss them in the olive oil. In a small separate bowl, mix the cornstarch, garlic powder, paprika, salt, and black pepper. Sprinkle over the sweet potatoes and toss until they are evenly coated.Arrange on Pan
Spread them out on the prepared baking sheets in a single layer. Be sure they are not overlapping. Baking one pan at a time (on the top rack) will yield the best results.Bake
Bake until brown and crisp on the bottom, about 12-15 minutes, then flip and cook until the other side is crisp, about 10-12 minutes. Serve hot with additional salt & pepper as desired.
Nutrition Facts
Servings 4
- Amount Per Serving
- Calories 272kcal
- % Daily Value *
- Total Fat 6.9g11%
- Saturated Fat 1g5%
- Sodium 245.6mg11%
- Potassium 777.6mg23%
- Total Carbohydrate 49.6g17%
- Dietary Fiber 7g29%
- Sugars 9.5g
- Protein 3.7g8%
* Percent Daily Values are based on a 2,000 calorie diet. Your daily value may be higher or lower depending on your calorie needs.
Note
Storage: These fries are best served fresh and hot, but leftovers keep well in the fridge, covered, for up to 3 days. To retain their crispness, reheat in an oven or air fryer until warmed through and crisp.
Make ahead: You can peel and slice the sweet potatoes up to 2 days in advance. To prevent them from browning, place the fries in a bowl large enough to contain them and fill the bowl with water. When you’re ready to bake, drain and thoroughly pat the fries dry.
