This Baked Sweet Potato recipe uses a simple salt-baking technique for irresistibly fluffy insides and crisp, savory skins-no oil or foil needed! An easy, healthy side dish or satisfying main. Video included.

three baked potatoes topped with butter and chili flakes with salted skins on oval plate with fork.

Every winter, the same thing happens: I crave roots. I've said this before, but they just feel grounding this time of year. And baked this way, my husband craves them too!

After the holidays, I find myself wanting simple, healthy comfort food without a lot of fuss. Lately, these baked sweet potatoes with broiled miso salmon or braised lentils have been on steady rotation-warm, nourishing, and deeply satisfying.

The magic here is in the salt-baking technique. Damp sweet potatoes are coated in salt, then baked uncovered until the skins are crisp and savory and the insides are impossibly fluffy. No oil, no foil-just a simple chef-tested method that makes an everyday sweet potato so much better. Have more sweet potatoes to use up? Here are 25 Sweet Potato Recipes, from cozy dinners and soups to salads and sides.

Why This Salt-Baked Method Works

Crisp, savory skins. A generous coating of salt seasons the skin and creates an irresistibly savory exterior-you'll actually want to eat it!

No oil needed. Leave the sweet potatoes damp after washing; the moisture helps the salt adhere while the skins dry and crisp in the oven.

No foil. Baking uncovered allows moisture to escape instead of trapping steam around the potato.

Fluffy, not soggy. Slice the potatoes open shortly after baking to release trapped steam and keep those beautiful interiors light and fluffy.

five sweet potatoes and wood salt dish with Celtic sea salt.

Baked Sweet Potato Ingredients

  • Sweet potatoes - Any variety works beautifully here, including Jewel, Garnet, Covington, purple, or Japanese sweet potatoes (my personal favorite!). Choose potatoes that are similar in size and shape so they bake evenly.
  • Salt - Use a fine sea salt that will easily adhere to the damp skins. I like fine-ground Celtic sea salt, Himalayan pink salt, or Baha Gold.

How to Bake Sweet Potatoes

1. Prep. Preheat the oven to 425°F for medium sweet potatoes. Scrub the potatoes clean but don’t dry them-the damp skins help the salt stick.

2. Salt. Generously coat the sweet potatoes with salt on all sides. No oil needed!

3. Prick and arrange. Prick each potato 2-3 times with a fork. Place on a wire rack set over a rimmed baking sheet, allowing hot air to circulate around the potatoes. Alternatively, place them directly on the oven rack with a sheet pan underneath to catch any drips.

4. Bake. Bake medium sweet potatoes for 40-60 minutes, or until completely tender. For the most precise test, the internal temperature should reach 205-212°F.

5. Open immediately. Within about 5 minutes of removing them from the oven, slice open the tops to release steam. Using a kitchen towel to protect your hands, gently squeeze the ends to open them up, then fluff the insides with a fork.

6. Serve. Add your favorite toppings and enjoy while hot and fluffy!

baked sweet potato with pat of butter and chili flakes with salted skin on plate with other baked potatoes.

Baked Sweet Potato Time & Temperature

The best baking temperature depends on the size of your sweet potatoes:

  • Small sweet potatoes (under 8 ounces): Bake at 450°F and begin checking early.
  • Medium sweet potatoes (8-16 ounces): Bake at 425°F for 40-60 minutes.
  • Extra-large sweet potatoes (over 16 ounces): Bake at 400°F and allow additional baking time.

Rather than relying on time alone, check for doneness. A knife or skewer should slide into the center with virtually no resistance. The skin may look slightly wrinkled or blistered, and you may see a little caramelized sugar beginning to seep out. For the most precise test, aim for an internal temperature of 205-212°F.

Baked Sweet Potato Tips

  • Choose similar-sized potatoes. They'll finish baking at roughly the same time, which is especially helpful when cooking for a group.
  • Give them room to breathe. A wire rack allows hot air to circulate around the potatoes, helping the skins dry and crisp.
  • Don’t underbake them. This is one of the biggest secrets to a fluffy interior. A knife should slide through the center effortlessly.
  • In a hurry? Slice the sweet potatoes in half lengthwise and bake them cut-side down on a parchment-lined baking sheet until tender.

What to Serve with Baked Sweet Potatoes

Serve baked sweet potatoes simply as a side dish with fish, roast chicken, pork, or beef, or load them up with toppings and turn them into a satisfying meal.

For a heartier dinner, stuff them with bean chili, lentil curry, tofu scramble, tofu sofritas, or sautéed greens.

Favorite Toppings

Keep it classic with butter or ghee, salt, pepper, and fresh herbs, or try one of these flavorful combinations:

Storage & Reheating

Let baked sweet potatoes cool, then refrigerate in an airtight container for up to 4 days.

Reheat in a 350°F oven, uncovered, until hot, or microwave for a quicker option.

For longer storage, freeze baked sweet potatoes in an airtight container for up to 3 months, and thaw overnight in the refrigerator before reheating.

Making Baked Sweet Potatoes for a Crowd

Back in my catering days, baked potato bars were always a hit! For a crowd, serve a mixture of classic Baked Potatoes and baked sweet potatoes with plenty of toppings and let everyone build their own.

When baking large batches, allow extra cooking time and rotate the pans halfway through for more even baking.

FAQs

How long do baked sweet potatoes take in the oven?

Most medium-sized sweet potatoes require 40-60 minutes of baking time at 425°F. When ready, their internal temp should be 205°F-212°F.

Should you rub sweet potatoes with oil before baking?

Not for this method. Leaving the sweet potatoes damp after washing helps the salt adhere, and baking them without oil allows the skins to dry as they cook.

How do I make baked sweet potatoes cook faster?

If you’re in a hurry, split the sweet potatoes in half and place them face down on a parchment-lined baking sheet and bake until tender.

Should I wrap the sweet potatoes in foil?

Not for this method. Foil traps steam around the sweet potatoes, resulting in softer skins. Baking them uncovered lets moisture escape and the skins dry as they bake.

oval plate with five baked sweet potatoes, yams and Japanese sweet potatoes, with butter and chili flakes with fork for fluffing.

Enjoy this Baked Sweet Potato recipe! Let us know your favorite toppings in the comments. If you like this recipe, be sure to make our Best Baked Potato Recipe, too!

More Favorite Sweet Potato Recipes

Watch How to Bake Sweet Potatoes

After you try this Baked Sweet Potato recipe, let us know how it turns out in the comments below. Your review will help other readers, too! Sign up here to join our community and receive our latest recipes and weekly newsletter! xoxo Sylvia

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Salt-Baked Sweet Potatoes: The Ultimate Recipe

Easy Baked Sweet Potato

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 5 from 12 reviews

Description

This Easy Baked Sweet Potato recipe uses a simple, chef-tested salt-baking method for irresistibly fluffy insides and crisp, savory skins-no oil or foil needed! With just two ingredients, it's an easy, healthy side dish or satisfying main.


Ingredients

Scale
  • 4 sweet potatoes: (6–12 ounces), any variety; choose similar-sized ones for even baking with few blemishes.
  • Fine sea salt: fine-ground Celtic sea salt, Himalayan pink salt, or a mineral-rich salt like Baha Gold.

Instructions

  1. Preheat oven to 425F. 
  2. Wash and scrub sweet potatoes, leaving them wet. 
  3. Rub with salt. While still wet (with water), liberally coat sweet potatoes on all sides with the salt. The water will help it stick. Do not use oil. 
  4. Place them on the wire cooling rack, over a sheet pan. Prick once with a fork on the top. 
  5. Bake on the middle rack until the sweet potatoes are tender in the middle, and the internal temperature reaches 205F to 212F. Timing will depend on the size of the sweet potatoes: medium sweet potatoes take 40-60 minutes. 
  6. Slit the top ovpen with a knife within 5 mins of removing from oven- fluff the flesh with a fork.
  7. Serve with desired toppings.

Notes

Optional toppings: butter olive oil, or ghee, salt, pepper, chili flakes, chili crisp, green onion, or even a tiny splash of maple syrup. 

No wire rack? Bake directly on the oven rack with a sheet pan on the rack below.  

Storage and meal prep: slit the top, let cool, and store sweet potatoes in an airtight container in the fridge for up to 4 days.  Reheat in a 350F oven until internal temp reaches 145F, or microwave. 

Freeze individually wrapped for up to 6 months, letting them thaw overnight in the fridge. 

Nutrition

  • Serving Size: 1 medium sweet potato (6-8 ounces)
  • Calories: 141
  • Sugar: 10.2 g
  • Sodium: 521.4 mg
  • Fat: 0.2 g
  • Saturated Fat: 0.1 g
  • Carbohydrates: 32.5 g
  • Fiber: 5.2 g
  • Protein: 3.2 g
  • Cholesterol: 0 mg

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Comments

  1. I have always enjoyed baked sweet potatoes, but like this with the salt on the skin really enhances the flavor! Have you tried using Japanese sweet potatoes that are white inside or the deep purple sweet potatoes?

  2. Simple, delicious and hearty! I topped the potato with greek yogurt with a bit of maple syrup mixed in and sprinkled dukkah on top. Served with a simple arugula salad with mustard vinaigrette. I will definitely try this method again and hope to get a more crisp crust. I don’t think I used enough salt. WINNER!

  3. Simple, delicious and hearty! I topped the potato with greek yogurt with a bit of maple syrup mixed in and sprinkled dukkah on top. Served with a simple arugula salad with mustard vinaigrette. I will definitely try this method again and hope to get a more crisp crust. I don’t think I used enough salt. WINNER!

  4. Absolutely terrific sweet potato recipe.
    So easy! And delicious with and without toppings. I used a garlic, mustard, butter, pepper mix.

  5. Fantastic recipe! I have always loved sweet potatoes but this recipe takes them to a whole new level. Thank you!

  6. Oh, wow! Cooking sweet potatoes this way makes them so creamy on the inside and crispy on the outside. I was worried about all of the salt but it actually is balanced out by all of the inside of the potato. I’ll never bake them any other way now! Thanks for sharing this recipe. P. S. I love getting your recipes in my email. I get so much inspiration to cook something new. All of the recipes that I have tried have been amazing!

  7. These are fantastic! I just love being able to make these and store some in the refrigerator for later and not lose any flavor or texture. I even stuffed one with leftovers from your recipe, Cozy Baked Beans with Butternut Sauce, and it was so good! Thank you1!

  8. OMG! These are amazing! I will never make roasted sweet potatoes another way again. Seriously, I was like “how good can this be?” but my wife and I were blown away! I used my meat thermometer to take the temp, and that is definitely key. When I cut into the potatoes, it was like their insides had liquefied. I made one with leftover bacon, parmesan, and green onions. I made my wife’s with maple syrup, butter, and cinnamon. Delicious!

  9. I love having a sweet potato for lunch with a small salad, but I never eat the skin until NOW! I used the air fryer first at 350 to make sure the inside gets cooked through then bumped to 400 for the last bit of the instructions. Sooo good! Thank you!!

  10. Thanks for this! I’ve always oiled and foiled my potatoes and the skin isn’t crispy! And thanks for the salt explanation. Side request-Do you have/can you write (if you don’t already have) a blog on which salts to use for which baking/cooking recipes? I keep seeing all different types and it gets confusing!

    1. Hi Sloane- glad you enjoyed this technique! Yes, that is a great idea. More and more I cook and bake with the most mineral rich salts I can find.

  11. This method is good! I thought how different can it be? I always bake high temp–but usually not on a rack, and have never salted before –never used oil either. This somehow did something, not sure what the science is, but the potatoes were better–skin of a sweet potato never really crispy like an Idaho potato, but these did have way more texture and the salt was good and permeated a bit too, and potato fluffier. Will be my method now too. Thanks!

  12. We had a few sweet potatoes in the pantry and decided to give these potatoes a try. These baked sweet potatoes are crazy good and super simple to make. Thanks for another great recipe!

  13. Turned out really good! The skin was crispy and not tough (nice texture). Will definitely make again.

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