There’s something about a basket of crispy deep fried sweet potato french fries that always disappears faster than regular fries in my house. They have a naturally sweet flavor, crispy golden edges, and a soft, fluffy center that makes them hard to stop eating. I started making these after trying them at a small burger restaurant in North Carolina, and after a few batches at home (some better than others!), I finally found a method that gives consistently crunchy fries without burning the natural sugars.

Unlike oven fries, deep frying creates that classic restaurant-style texture everyone loves. They pair perfectly with burgers, grilled chicken, sandwiches, barbecue, or even as a snack with your favorite dipping sauce.

Why You’ll Love This Deep Fried Sweet Potato French Fries Recipe

These homemade sweet potato fries are:

• Crispy outside and creamy inside.
• Made with simple grocery store ingredients.
• Perfect as an appetizer, side dish, or game day snack.
• Naturally rich in fiber, potassium, and Vitamin A.
• Easy enough for beginners but tastes like restaurant-quality fries.
• Great with spicy mayo, ranch dressing, garlic aioli, ketchup, or honey mustard.

One thing I learned the hard way—you really shouldn’t crowd the fryer. I did once and they came out kinda soggy. Since then I always fry in small batches, and honestly it makes all the difference.

How I Came Across This Recipe

A few years ago, I ordered a gourmet burger that came with crispy sweet potato fries instead of regular fries. I honestly thought they would be too sweet, but after one bite I was hooked. When I got home, I tried recreating them several weekends in a row. Some batches burned because sweet potatoes have more natural sugar than russet potatoes, while others turned soft because the oil wasn’t hot enough.

Eventually I discovered that soaking the fries before frying and cooking them twice creates that perfect crispy texture. It took a little patience, but now this recipe never disappoints.

The Best Deep Fried Sweet Potato French Fries Recipe (Extra Crispy & Better Than Restaurant Fries!)

Recipe by Amazing Ruth

0.0 from 0 votes

Course: BreakfastCuisine: AmericanDifficulty: Easy

Servings

4

servings

Cooking time

10

minutes

Calories

340

kcal

Total time

1 hour 25 minutes

Prep Time

1 hour 15 minutes

These crispy deep fried sweet potato french fries have a perfectly crunchy outside with a soft, fluffy center. Double frying creates restaurant-style fries that pair perfectly with burgers, sandwiches, BBQ, or your favorite dipping sauce.

Ingredients

• Sweet Potatoes

• 2 large sweet potatoes (about 2 pounds), peeled if desired

• Cut into ¼-inch thick fry strips

• Choose firm sweet potatoes with smooth skin and no soft spots. Uniform slices help everything cook evenly.

• For Frying

• 6 cups peanut oil, canola oil, or vegetable oil

• Peanut oil gives amazing flavor, but canola oil works great too and is easier to find in most American grocery stores.

• Seasoning

• 1 teaspoon kosher salt

• ½ teaspoon garlic powder

• ½ teaspoon smoked paprika

• ¼ teaspoon black pepper

• Pinch of cayenne pepper (optional)

• Optional toppings

• Fresh chopped parsley

• Grated Parmesan cheese

• Cajun seasoning

• Cinnamon sugar for a sweeter version

Directions

• Wash and peel the sweet potatoes if preferred. Slice them into evenly sized fries about ¼-inch thick.
• Place the fries into a large bowl of cold water for at least one hour. This removes excess starch and helps them become crispier after frying.
• Drain the fries well and pat them completely dry using paper towels. Even a little moisture can cause oil to splatter.
• Heat oil in a deep fryer or heavy Dutch oven to 325°F.
  Using a thermometer really helps here. Guessing the oil temperature usually don’t end very well.
• Carefully fry the sweet potatoes in small batches for about 4–5 minutes.
  At this stage they should be tender but not browned.
• Remove the fries using a slotted spoon and place them on a wire rack or paper towels.
  Allow them to rest for about 10 minutes.
• Increase the oil temperature to 375°F.
  The hotter oil during the second fry creates the crispy exterior.
• Return the fries to the hot oil and fry another 2–3 minutes until beautifully golden brown and crispy.
  Watch them carefully because sweet potatoes can brown quicker than regular potatoes.
• Transfer immediately to a wire rack.
  Season with salt, garlic powder, smoked paprika, pepper, and cayenne while still hot so everything sticks better.
• Serve immediately with ketchup, spicy ranch, chipotle mayo, garlic aioli, or honey mustard.
  Fresh fries are always the best. They loses a little crispness if they sit too long, so enjoy them right away.

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Estimated Cost

This recipe serves about 4 people.

• Sweet potatoes: around $3.50
• Frying oil (portion used): around $2.00
• Seasonings: around $0.75

Total estimated cost: about $6.25, or roughly $1.55 per serving, depending on local grocery prices.

My Best Tips

• Always soak the fries before frying.
• Dry them completely before they touch hot oil.
• Never overcrowd the fryer.
• Double frying gives the crispiest texture.
• Season immediately after frying.
• A wire rack keeps fries crispier than paper towels.
• Cut fries evenly so they cook at the same speed.

What to Serve with Sweet Potato Fries

These crispy sweet potato fries pair wonderfully with:

• Cheeseburgers
• BBQ pulled pork sandwiches
• Fried chicken sandwiches
• Grilled steak
• Turkey burgers
• Hot dogs
• Buffalo chicken wraps
• Crispy chicken tenders
• Grilled salmon
• Veggie burgers

Best Time to Make This Recipe

These fries are especially great for:

Time of Day

• Lunch
• Dinner
• Afternoon snack
• Late-night comfort food

Best Season

• Summer cookouts
• Fall family dinners
• Winter comfort meals
• Spring backyard gatherings

Perfect Mood

• Craving comfort food
• Weekend cooking
• Family movie night
• Casual get-togethers
• Treat-yourself days

Great Occasions

• Game day parties
• Backyard BBQs
• Birthday dinners
• Family gatherings
• Holiday cookouts
• Potlucks
• Burger night

Frequently Asked Questions

Why aren’t my sweet potato fries crispy?

Usually it’s because the fries weren’t soaked, they weren’t dried completely, or the oil temperature was too low. Double frying also makes a huge difference.

Can I leave the skin on?

Absolutely. Just scrub the sweet potatoes well before slicing. The skin adds extra texture and nutrients.

What’s the best oil for deep frying?

Peanut oil is my favorite because of its high smoke point and clean flavor. Canola and vegetable oil are excellent choices too.

Can I make these ahead of time?

They’re best served fresh. If needed, you can complete the first fry several hours ahead, then finish the second fry just before serving.

Why do sweet potato fries cook differently than regular fries?

Sweet potatoes contain more natural sugar and less starch than russet potatoes, so they brown faster and need careful temperature control.

What dipping sauces taste best?

Classic ketchup, spicy mayo, garlic aioli, ranch dressing, chipotle sauce, honey mustard, and maple sriracha are all delicious options.

Can I reuse the frying oil?

Yes. Let the oil cool completely, strain it through a fine mesh sieve, and store it in an airtight container for future frying.