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Baked Sweet Potato Chips

November 4, 2014 by Laura 20 Comments

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I stumbled on a picture of sweet potato chips last week and bingo – I became instantly obsessed by the thought of using the sweet potato sitting on my counter to make baked sweet potato chips. My intention was to look up a recipe, cut the potato, and voilà – craving satisfied. But it turned out that there are more ways to bake a sweet potato chip than I could have imagined.

Baked sweet potato chips are simple to make - and delicious!

Down the internet rabbit hole I went – cruising through instructions from Food & Wine, a paleo blogger, a blogging couple who are in love with each other and their food in equal measure (judging from their photos) and even one of Paula Deen’s sons. I did look at a few others, but decided after my eyes began to cross, that the three major variables were: 1) how to cut the potato; 2) baking temperature; and 3) methods to promote even cooking.

What began as a quick trick to satisfy my desire for a salty snack ended up as a cooking experiment almost worthy of America’s Test Kitchen or Kenji Lopez-Alt of SeriousEats. I say “almost” because I put this obsession aside after trying only two baking temperatures and two methods of baking the chips.

I’m certain to continue experimenting, but not until after Thanksgiving. For the rest of November, all thoughts of sweet potato have to be directed at side dishes or maybe a pie.

Back to the baked sweet potato chips –

  • How to cut – I cut my chips with a knife, rather than a mandoline because I was too lazy to pull mine out and I figured that not everyone has that piece of kitchen equipment. The advantage to using a mandoline is that the slices will be even. With patience and care you can cut a large sweet potato into almost transparently thin slices, but some of the slices are bound to be uneven and you’ll probably get some scraps, as I did. I’ve seen suggestions that a food processor thin slicing blade will work, but I’m dubious.
  • Temperature – Temperatures in the recipes I consulted varied from 200 degrees F to 450 degrees F. I tried baking chips at 300 and 375 degrees F. The batch at 375 degrees burned after baking for 20 minutes. The batches at 300 degrees did pretty well, cooked for between 40 and 58 minutes depending on whether they were flat on the baking sheet or on a rack. This result makes sense, but it’s the opposite of the temperatures that work best for baking and roasting sweet potatoes. 
  • Baking Tips – Most recipes call for placing the thin slices on parchment-lined cookie/baking sheets. But one recipe, the Food & Wine version, used a rack on a cookie sheet to help air circulate under the chips while they bake. I found that method superior to laying the slices directly on the parchment-lined cookie/baking sheet.

Verdict – It’s a lot of work for a small number of chips. (One 11-ounce potato requires 3 cookie/baking sheets to lay the slices in a single layer.) But making chips is a simple process once you get the hang of it, they do taste divine and a plate of homemade baked chips is pretty impressive looking.

It's easy to make baked sweet potato chips that are better than store-bought.

Baked Sweet Potato Chips

Servings – 2   Cost $2

Ingredients

  • 1 large sweet potato (mine was 11 ounces)
  • 3 tablespoons olive oil
  • Kosher or coarse sea salt (¾ – 1 teaspoon)
  • Freshly ground pepper
  • Fresh or dried herbs or spices (optional –e.g. rosemary, thyme, cayenne pepper)

Equipment

  • Cutting board
  • Knife
  • Medium-sized bowl
  • Measuring spoon
  • Cookie/baking sheets (Optional to line with parchment paper, which avoids getting any oily film on the pan.)
  • Racks (type used for cooling cookies) that fit into the cookie/baking sheets
  • Tongs

Preparation

  • Preheat the oven to 300 degrees F.
  • Slice the potato as thinly as possible. Put the slices in the bowl and toss with half the salt, a bit of ground pepper and any optional herbs or spices.  (It’s easier to make sure the oil gets well distributed if you use your hands.) 

Slicing a sweet potato for baked sweet potato chips.

Slices of sweet potato ready for baking.

Adding oil to sweet potato chips before baking them.

  • Arrange the slices in a single layer on the racks that are set inside the pans. Sprinkle with remaining salt and a few more turns of the pepper mill.
  • Bake for approximately 50-60 minutes, turning the slices midway and rotating the pans, switching their places in the oven and to turn them around so the part facing the back of the oven moves to face the front. Watch carefully after 45 minutes and remove any small pieces that are beginning to darken beyond light brown. The chips will continue to crisp as they cool.

Eat soon after baking. They don’t improve with age and don’t last beyond a few hours, but that shouldn’t be a problem – they’re addictive. 

Letting baked sweet potato chips cool after baking.

Filed Under: Appetizers & Snacks, Archives, Potatoes Tagged With: chips, snack, sweet potato

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Comments

  1. The Martini Diva says

    November 8, 2014 at 8:39 pm

    I have to say you have more patience than I would. I’d have used the mandolin and thrown mine in the deep fryer, lol.
    See you next week on the link up party!

    Reply
    • motherwouldknow says

      November 15, 2014 at 3:33 pm

      haha – maybe I should look for my mandoline (it’s a cheap one and when I find it, I may wish I hadn’t:)

      Reply
  2. Rene J. says

    November 11, 2014 at 10:17 pm

    I’m kind of with The Martini Diva on this one, but I know baked is healthier and not as messy. BTW, you might consider getting a small, hand-held mandoline-type slicer that you can just toss in a drawer. They work every bit as well as the full-sized ones, and are more convenient for smaller jobs like this one. Pinned and Stumbled, Mother! 😉

    Reply
    • motherwouldknow says

      November 15, 2014 at 3:35 pm

      Thanks Renee – yeah, I should look for my cheap mandoline:) I’ve lusted over the big, "real" ones, but I’m scared of the commitment, not to mention the potential trips to the ER.

      Reply
  3. Cook In / Dine Out says

    November 11, 2014 at 11:44 pm

    These sound really good! I might make them as a Thanksgiving appetizer.

    Reply
    • motherwouldknow says

      November 15, 2014 at 3:32 pm

      Glad you like them – they’d make a great appetizer (with dip?)

      Reply
    • motherwouldknow says

      November 24, 2014 at 2:08 pm

      Oooh – sounds like the beginning of a great meal.

      Reply
  4. Lauren says

    February 19, 2015 at 1:46 pm

    Sweet potato chips are my fav!

    Reply
  5. Kate @ veggie desserts says

    February 19, 2015 at 2:46 pm

    Oooh, these sound great. I have a HUGE sweet potato that needs to be used up. Perfect!

    Reply
  6. Shannon @ Dinner from the Heart says

    February 19, 2015 at 6:59 pm

    I have a couple of sweet potatoes in my pantry that were just waiting for this recipe. I would definitely pull out my mandoline, though. That thing saves me. 🙂

    Reply
  7. Faith (An Edible Mosaic) says

    May 11, 2015 at 4:42 pm

    I have experimented with sweet potato chips as well in the past. They are by far my favorite kind of chips (although I do enjoy beet chips too), so a homemade version really gets me excited. I agree, the end result is really wonderful, although I found they can be a little finicky to get right. Yours look like they came out perfect and it is definitely giving me a craving for them!

    Reply
  8. Sue Lau says

    May 11, 2015 at 5:10 pm

    These sound so good! I can imagine them sprinkled with spicy chili powder and garlic. Is there any special technique to getting the chips to curl? All my efforts before this with potatoes and such resulted in very flat chips.

    Reply
  9. Manila Spoon says

    May 11, 2015 at 6:14 pm

    I have to thank you so much for the very helpful tips on making these yummy sweet potato chips! I have never ventured on making a batch from scratch as I thought it would be too complicated but perhaps I may try soon with this recipe of yours. Pinned, too.

    Reply
  10. Kristen says

    May 11, 2015 at 6:24 pm

    I have always wanted to make these, but something about cooking sweet potatoes into fries or chips has always been a challenge. I am gonna follow these instructions to see if this helps. Thanks for the inspiration!

    Reply
  11. Elizabeth says

    October 26, 2015 at 3:38 am

    Such perfect sweet potato chips! I only ever tried making these once and they didn’t turn out, so I gave up. I really ought to give it a go again!

    Reply
    • Laura says

      October 26, 2015 at 9:48 pm

      Elizabeth, Thanks so much for your kind words. There are many variables in making baked vegetable chips (including the weather and how accurate your oven is) – the reason why yours didn’t turn out might have been a one-time event – do try again:) Best, Laura

      Reply
  12. Lisa @ Panning The Globe says

    October 26, 2015 at 5:25 pm

    I’ve always wanted to make sweet potato chips. Thanks so much for doing all the research! I’m definitely going to try your method. And then, just like you said, I’ll have to put the fun frivolous cooking experiments aside and get down to serious holiday cooking.

    Reply
    • Laura says

      October 26, 2015 at 9:41 pm

      Lisa, Delighted to know that someone else can get easily distracted by these fun, frivolous experiments. Yes, serious holiday cooking awaits afterwards:) Laura

      Reply
  13. Lee says

    June 8, 2016 at 3:19 pm

    Do you think these could be made without salt? I’m on a low sodium diet but they look delicious!

    Reply
    • Laura says

      June 15, 2016 at 8:23 pm

      Lee, Certainly they could be made without salt, but if so, I’d add another spice or a salt substitute – plain sweet potatoes are a bit bland.

      Reply

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