Crispy Sweet Potato Fries

Crispy Sweet Potato Fries

Crispy Sweet Potato Fries with a single magic ingredient to keep them crispy! No more soggy fries, these stay crispy even if you have to reheat in the oven.
Course Side
Cuisine American
Keyword Crispy Sweet Potato Fries, sweet potato fries
Prep Time 20 minutes
Cook Time 20 minutes
Total Time 40 minutes
Servings 6 servings
Calories 77 kcal
Author Sabrina Snyder


  • 2 large sweet potatoes (about a pound)
  • 1/2 cup cornstarch
  • 6 tablespoons club soda (or ice water)
  • 2 teaspoons kosher salt
  • canola or vegetable oil for frying
US Customary - Metric


  1. Wash and peel your sweet potatoes. Cut into 1/4 inch thick fries and rinse the potatoes for about 10-15 seconds under cold water then dry with paper towels or a clean dish cloth you don't mind turning slightly orange.

  2. Mix the cornstarch with the water to make a slurry in a large bowl or large ziploc bag, add sweet potatoes and toss to coat.

  3. Heat your oil in your pot to 350 degrees and add the fries 1 at a time so they don't stick together, but make sure you don't overcrowd your pan.

  4. Each time you do another round of potatoes toss the potatoes in the slurry again to prevent the cornstarch from settling. This should only take a few seconds and is even easier if you have a ziploc bag you can just flip upside down a few times and shake.
  5. Fry for 1-2 minutes (no browning yet) and drain on a brown paper bag.

  6. Once all the fries are done with their first dip in the oil, start the second round of frying, then fry them the second time for an additional 2 minutes, until they're browned and crispy.

Recipe Notes

To reheat: If you're making ahead for a crowd, you can heat them in the oven at 325 degrees for 5-7 minutes to crisp them back up.

Nutrition Facts
Crispy Sweet Potato Fries
Amount Per Serving
Calories 77
% Daily Value*
Sodium 803mg 33%
Potassium 146mg 4%
Total Carbohydrates 18g 6%
Dietary Fiber 1g 4%
Sugars 1g
Vitamin A 123%
Vitamin C 1.3%
Calcium 1.3%
Iron 1.7%
* Percent Daily Values are based on a 2000 calorie diet.