Crispy Sweet Potato Fries

Category: Supporting Players with Star Quality

Bring out the best texture in sweet potato fries by cutting them evenly and rinsing off excess starch. A quick soak in a cornstarch and club soda slurry helps create an extra-crispy coating. Fry the sweet potatoes in small batches, first at a lower temperature for a tender interior, then again at a higher temperature for a deep golden, shatteringly crisp crust. Give them a generous sprinkle of kosher salt while hot to enhance their natural sweetness. Serve immediately for maximum crunch and flavor. For reheating, use a hot oven to restore crispness easily.

Sandra
By Sandra Sandra
Updated on Wed, 18 Jun 2025 19:13:45 GMT
A basket of fries with a red and white checkered pattern. Pin
A basket of fries with a red and white checkered pattern. | howtogourmet.com

Crispy sweet potato fries bring the best of comfort food right to your kitchen with that irresistible crunch and a perfect salty finish. If you have ever been disappointed by soggy homemade fries these tips will give you golden results that rival your favorite café. Every batch I make disappears before anyone can ask for ketchup and they are surprisingly easy once you know a few tricks.

The first time I made these was for a lazy Friday movie night and they were such a hit my friends still talk about the crunch. No sogginess just pure fry joy every single time.

Ingredients

  • Sweet potatoes: look for unblemished orange flesh which will deliver sweet interiors and hold up well to frying
  • Cornstarch: helps create that essential crispy shell so check for the freshest box to avoid lumps
  • Club soda or ice water: works to lighten the starch coating so go for the fizziest soda or coldest water you can grab
  • Kosher salt: gives the perfect finishing pop of savoriness use a flaky kind for best coverage
  • Canola or vegetable oil: high smoke point oils keep fries crisp and golden so use a fresh neutral oil

Step-by-Step Instructions

Prep the Sweet Potatoes:
Scrub peel and slice the sweet potatoes into quarter inch sticks. Give them a quick rinse under cold water for up to fifteen seconds to wash away extra starch then pat extremely dry with towels or a clean dishcloth. Getting them as dry as possible helps the next step cling better and ensures crunch.
Coat with Slurry:
Mix cornstarch with club soda or ice water in a large bowl or zip bag. Stir or shake well to form a loose paste. Drop the fries in and gently toss or shake to coat each fry. The coating should be even and not gloppy for crisp results.
Heat the Oil:
Pour oil into a deep saucepan filling enough to cover the fries. Bring the temperature up to three hundred fifty degrees Fahrenheit or one hundred seventy five Celsius. Use a thermometer for accuracy if you have one.
First Fry for Structure:
Drop fries carefully into hot oil a few at a time. Do not crowd the pan. Fry each batch for one to two minutes. The fries should begin to look slightly cooked but have no color yet. Remove and drain immediately on paper towels or a paper bag.
Recoat Between Batches:
Give the fries another gentle toss in the slurry every batch to keep them coated and to prevent the starch from settling out at the bottom.
Second Fry for Crispness:
Return fries to the hot oil in batches. This time let them fry for around two minutes or until you see a deep golden color develop. Watch the oil and adjust heat as needed so fries get crisp not burnt. Drain again while hot.
Finish and Serve:
While fries are still piping hot shake on kosher salt so it sticks and serves at once for best crunch.
A basket of fries with salt on top. Pin
A basket of fries with salt on top. | howtogourmet.com

Sweet potatoes are my favorite root veg and I love how their tangy sweetness pairs with a salty crispy edge. Once my nephew helped me mix the slurry and he beamed with pride when his fries came out so perfectly crunchy.

Storage Tips

Let fries cool fully before storing in an airtight container lined with paper towels. Refrigerate for up to two days. If they lose crispness give them a few minutes in a dry hot oven to revive.

Ingredient Substitutions

If you do not have club soda use the coldest water you can get for a lighter fry crust. For added flavor blend a shake of smoked paprika or garlic powder into your cornstarch. Avocado oil can stand in for canola if desired.

A basket of fries with salt on them. Pin
A basket of fries with salt on them. | howtogourmet.com

Serving Suggestions

Serve these fries piping hot right as they come out of the oil. Try them with aioli sriracha dip or just a squeeze of lime. They go with burgers salads or work as a fun party appetizer on their own.

Cultural Context

Sweet potato fries have roots in both Southern US and Asian cuisines. The double fry technique borrowed from classic French fries makes the dish exceptionally crispy and brings out the root’s natural sweetness. My grandma always paired them with fried chicken for a Sunday treat.

Recipe FAQs

→ How do I keep sweet potato fries crispy after frying?

Drain the fries on paper towels and serve immediately. If needed, reheat briefly in a hot oven for restored crispness.

→ Why use cornstarch and club soda for coating?

Cornstarch creates a dry, light coating, while club soda adds airiness, helping to achieve an extra-crispy exterior.

→ Do I need to double-fry sweet potato fries?

Double-frying helps build a sturdy crust and promotes even golden color without overcooking the interior.

→ Can I use another oil instead of canola or vegetable oil?

Any neutral oil with a high smoke point, like peanut or sunflower oil, works nicely for deep-frying fries.

→ What is the best way to cut sweet potatoes for fries?

Peel and slice into uniform 1/4 inch thick sticks for even cooking and consistent crisp results.

→ How should I store sweet potato fries if making ahead?

Cool completely, then store in an airtight container. Reheat in a preheated oven to bring back the crisp texture.

Crispy Sweet Potato Fries

Enjoy ultra-crispy sweet potato fries with golden edges and a tender interior, perfect for snacking or sides.

Preparation Time
15 min
Cooking Time
15 min
Total Time
30 min
By Sandra: Sandra

Category: Side Dishes

Skill Level: Intermediate

Cuisine: American

Yield: 4 Servings (1 basket of fries)

Dietary Preferences: Vegan, Vegetarian, Gluten-Free, Dairy-Free

Ingredients

→ Main Ingredients

01 2 large sweet potatoes (approximately 450 g total), peeled and cut into 6 mm thick fries
02 120 ml cornstarch
03 90 ml club soda or ice water
04 2 teaspoons kosher salt
05 Canola or vegetable oil, sufficient for deep frying

Steps

Step 01

Wash and peel sweet potatoes. Slice evenly into 6 mm thick fries. Rinse fries under cold water for 10 to 15 seconds, then dry thoroughly with paper towels or a clean dish cloth.

Step 02

In a large bowl or resealable plastic bag, combine cornstarch with club soda or ice water to form a smooth slurry. Add sweet potato fries; toss or shake gently to coat evenly.

Step 03

Fill a deep pot with enough canola or vegetable oil to submerge the fries. Heat oil to 175°C.

Step 04

Add fries to hot oil one at a time, working in batches to prevent overcrowding. Fry for 1–2 minutes, maintaining the oil temperature. Fries should not brown. Remove using a slotted spoon and drain on paper towels or a brown paper bag.

Step 05

Before each subsequent batch, gently toss fries again in cornstarch slurry to redistribute coating and prevent settling.

Step 06

Once all fries have undergone the initial fry, return them in batches to the 175°C oil. Fry for 2 minutes per batch, or until deeply golden and crisp. Drain again.

Step 07

Sprinkle fries with kosher salt while hot and serve immediately.

Additional Notes

  1. For maximum crispiness, ensure sweet potato fries are completely dry before coating with the cornstarch slurry.
  2. If making ahead, reheat fries in a preheated oven at 165°C for 5 to 7 minutes to recapture crispness.

Required Equipment

  • Deep pot
  • Slotted spoon
  • Paper towels or brown paper bag
  • Large bowl or resealable plastic bag

Nutritional Information (per serving)

The provided details are for informational purposes and should not replace professional health advice.
  • Calories: 210
  • Fats: 6 g
  • Carbohydrates: 38 g
  • Proteins: 2 g