Crispy Air Fryer Sweet Potato Fries With Cornstarch (2024)

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Why you will love this recipe

• This is an easy recipe to make.
• The air fryer cooks the homemade fries quickly and evenly.
• It takes a fraction of the time in the air fryer as it does in the oven.
• Both kids and adults love them.
• Easy cleanup - rinse and wipe the bottom of the air fryer basket.

Recipe Ingredients

You only need a few simple ingredients to make these homemade sweet potato fries. You can easily find everything you need at your local grocery store.

Ingredient Notes:

• Sweet potatoes: I used organic sweet potatoes. Wash and peel the sweet potatoes before slicing them into fries.
• Olive oil: I used organic olive oil, but avocado oil or vegetable oil can be used.
• Cornstarch is my secret ingredient to ensure the fries get extra crispy on the outside. If you don't have cornstarch, substitute arrowroot flour.
• Seasonings: I used garlic powder, paprika, black pepper, and sea salt. I sprinkled on extra sea salt to taste after it was fully cooked. You could also use kosher salt, seasoning salt, or table salt.

See the printablerecipe card belowfor quantitiesand a complete list of ingredients.

Variations

• Use cayenne pepper for a spicier kick.
• Add ½ teaspoon of oregano, chili powder, onion powder, thyme, Italian seasoning, dill weed, or Cajun seasoning.
• Top with shredded cheese and crumbled bacon.
• Sprinkle Parmesan cheese and parsley on the cooked fries.
• For sweetness, sprinkle on some cinnamon sugar or drizzle with honey after cooking.

Want to cook frozen sweet potato fries in the air fryer instead of making your own from scratch? No problem! Make my Frozen Sweet Potato Fries Air Fryer recipe.

How to make crispy air fry sweet potato fries

Quick Overview

• Cut sweet potatoes into fries.
• Soak fries in water.
• Dry fries to remove excess moisture.
• Toss with corn starch and seasoning.
• Place in the basket in even layer.
• Air fry until crispy and golden brown.

Step By Step Instructions

Step 1: Wash and peel your sweet potatoes. I used seven small-sized sweet potatoes, about 1.5 pounds, to feed my family of 4.

Step 2: Cut the potatoes in half lengthwise with a sharp knife on a cutting board. Then, cut each half in half again lengthwise. You will have four sections of sweet potato. Cut each section into fries.

Step 3: You want them to be relatively small, about ¼ inch wide.

Step 4: Cover sweet potato fries with cold water in a large bowl. Let them soak for at least 1 hour or as long as overnight. The water helps to draw the starch out of the potatoes. This allows the fries to cook better and be extra crispy and tender on the inside.

Step 5: Drain the water and place the sweet potatoes on a paper towel on the counter. Pat dry with another paper towel. You want them to be as dry as possible.

Step 6: Place sweet potatoes in a large bowl or ziplock bag. Add cornstarch, garlic powder, paprika, black pepper, and sea salt. Mix the cornstarch and seasonings into the sweet potatoes with a large spoon or tongs. The white cornstarch will disappear.

Step 7: Drizzle olive oil over the seasoned sweet potatoes and remix them. Preheat your air fryer to 400 degrees Fahrenheit.

Step 8: Add the sweet potatoes to the air fryer basket in a single layer. Do not overcrowd the basket. The hot air must circulate between the fries so they cook evenly and crisp up. Air fry the sweet potatoes for 15 minutes, shaking the basket with a good toss every 5 minutes.

Step 9: Remove the fries from the air fryer when they have reached the desired crispness. Repeat with remaining batches.

Step 10: Serve immediately with your favorite dipping sauces like ketchup, ranch dressing, or dill dip.

FYI

I have made these sweet potato fries in my Ninja Foodi air fryer as well as my Instant Pot Vortex air fryer with great results.

Air fryers cook differently, so the cooking time may have to be adjusted for your air fryer. Oven-style air fryers may not crisp up as well as basket-style air fryers. Also, thin fries will cook in less time than thicker fries.

Serving Suggestions

I love to serve these delicious fries with Smoked Tuna Steaks, Air Fryer Keto Tuna Patties, BBQ Pork Ribs in Instant Pot, and Smoked 3-2-1 Ribs.

They also go great with Maple-Soy Glazed Salmon, Spinach And Mushroom Omelet, Smoked Burgers On Pellet Grill, Smoked Pork Butt on Pellet Grill, and Smoked Boneless Skinless Chicken Thighs.

Expert tips

• For best results, cut the sweet potato fries into evenly sized fries so they cook evenly. Smaller, thinner fries will crisp up better than thicker, wider fries.
• It is important to soak the potatoes for crispy fries.
• Ensure you dry the sweet potatoes well after draining the water.
• Do not overcrowd the basket of the air fryer.
• Always add the oil. The oil helps the fries to become crispy.
• Shake the basket every 5 minutes through the cooking time.
• Keep in mind that the skinny ends of the fries will cook quickly, so keep an eye on them to ensure they don't burn.
• If your fries are not crispy enough, put them back in for another minute or two.

Storage

Fridge: Store leftover sweet potato fries in an airtight container in the fridge for up to 2 days.

Freezer:Flash-freeze leftover fries on a baking sheet with parchment paper underneath. Place the sheet pan in the freezer until the fries are frozen, about one or two hours. Place the fries into a freezer bag, removing as much air as possible. They will keep in the freezer for up to 3 months.

Reheat: Reheat fries in the air fryer for a few minutes until hot.

Recipe FAQs

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Crispy Air Fryer Sweet Potato Fries With Cornstarch

These Crispy Air Fryer Sweet Potato Fries With Cornstarch are crispy on the outside and tender and flavorful on the inside. Made with just a few simple ingredients, these seasoned fries are cooked to perfection in the air fryer and make a great side dish or snack. I will warn you, though, they are addicting!

Servings: 6 servings

Calories: 294kcal

Nutrition

Serving: 1g | Calories: 294kcal | Carbohydrates: 54g | Protein: 4g | Fat: 7g | Saturated Fat: 1g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 5g | Sodium: 339mg | Potassium: 899mg | Fiber: 8g | Sugar: 11g | Vitamin A: 37530IU | Vitamin C: 6mg | Calcium: 80mg | Iron: 2mg