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A black bowl filled with sweet potato fries.

The Crispiest Sweet Potato Fries – Plain or Spicy

Make the crispiest sweet potato fries in 30 minutes. Just slice, toss, and roast.
5 from 1 vote
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Course: Appetizer, Side Dish, Snack
Cuisine: American
Diet: Vegan
Prep Time: 10 minutes
Cook Time: 30 minutes
Total Time: 40 minutes
Servings: 4 servings
Calories: 185kcal
Author: Linda & Alex
Cost: $6


  • 1 Oven


  • 1 lb sweet potatoes approximately 2 large or 3 medium potatoes
  • 2 tablespoon extra-virgin olive oil
  • 2 tablespoon potato or cornstarch SEE NOTE
  • 1 teaspoon chili powder
  • 1 teaspoon cumin
  • 1 teaspoon smoked paprika
  • ½ teaspoon garlic powder
  • ½ teaspoon onion powder
  • ¼ teaspoon cayenne pepper optional
  • Salt and pepper to taste don’t add until you take the fries out of the oven
  • 1 teaspoon oregano
  • 1 teaspoon dried parsley
  • 1 teaspoon cumin
  • ½ teaspoon garlic
  • ½ teaspoon onion
  • Salt and pepper to taste don’t add until you take the fries out of the oven


  • Preheat the oven to 400°F (204°C) and line a baking sheet with parchment paper
  • Scrub the potatoes clean and peel (optionaand cut the potatoes into sticks or wedges, just make sure that they’re the same size so they cook evenly.
  • In a large bowl or Ziplock bag, whisk or shake the 2 tablespoon potato starch, and spice mix of choice (optionatogether until well blended.
  • Add the potatoes to the bowl/bag and toss them until they’re fully coated with the starch/spice mix.
  • Drizzle the 2 tablespoon olive oil over them and then toss until evenly coated.
  • Spread the fries evenly on the parchment lined baking sheet, making sure that they’re not touching or overlapping, which will result in soft fries
  • Bake for 15 minutes and then flip all of them and bake for 15 more minutes, or until they’re golden brown and crispy.
  • Salt and pepper them to taste and let them sit for 5 minutes. They’ll get crispier as they cool.
  • Enjoy!


  • We found that potato starch is the best starch to use for making fries. You can use cornstarch or tapioca starch.
  • Best if eaten the same day.
  • Store covered in the refrigerator for up to 4 days. Reheat in a 250F (176C) oven. 
  • Freeze in a freezer safe container for up to 3 months. 


Serving: 0.05cup | Calories: 185kcal | Carbohydrates: 28g | Protein: 3g | Fat: 8g | Saturated Fat: 1g | Sodium: 79mg | Potassium: 465mg | Fiber: 4g | Sugar: 5g | Vitamin A: 16581IU | Vitamin C: 3mg | Calcium: 50mg | Iron: 2mg
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