Dinner

Oven-Baked Sweet Potato Chips 🍠

Name: Oven-Baked Sweet Potato Chips 🍠
Prep time: 35 min
Cook time: 35 min
Total time: 70 min
Yield: 4 servings
Cuisine: North American
Ingredients: 2 sweet potatoes (ideally as close to being uniform in thickness as possible); olive oil; kosher salt

Prep

35 min

Cook

35 min

Total

1hr 10min

Serves

Style

💰 Everyday

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I can't get enough of these oven-baked sweet potato chips! They're delicious on their own, but also incredibly versatile—you can season them with your favorite spices or use them as a crunchy topping to elevate any dish. They add a pop of colour, texture, and flavour, making them the pièce de résistance of any meal.

But sweet potatoes can be tricky to work with. They have a high moisture content and natural sugars that can make it challenging to get them perfectly crisp without burning. After testing different methods, I found the best approach: salting the sweet potato slices to draw out moisture, draining them in a colander, and baking at a low temperature. This technique results in vibrant, crispy chips that maintain their beautiful orange colour without turning too dark.

Ingredients

Servings:

2 sweet potatoes (ideally as close to being uniform in thickness as possible)
olive oil
kosher salt

Instructions

1
Wash the sweet potatoes well and slice them thinly on a mandoline or with a sharp chef's knife. DO NOT PEEL THEM. Sprinkle them with kosher salt (around 1/2 teaspoon/2.5ml coarse kosher salt) and let them sit in a colander to drain for 20–30 minutes. Preheat the oven to 250°F (120°C). Lightly coat 2 aluminium baking sheets with olive oil. Do not use parchment paper or anything else—just the baking sheet.
2
Rinse the sweet potatoes under cold water and drain them very well on paper towels or a clean kitchen towel. Drizzle them with olive oil, making sure each chip is coated well with oil.
3
Spread them in a single layer on your prepared baking sheets. Bake in the preheated oven for 1 hour. Turn each sweet potato chip and bake for another 30–60 minutes (this will depend on how thinly you sliced them) until they are crisp and look like chips. In addition, rotate the baking sheets from top to bottom and turn them 180° for even cooking. Transfer to a paper towel-lined plate to remove extra oil, and season with kosher salt. Feel free to add any other spices of your choice (paprika, chipotle, cayenne, garlic powder, etc.). Just to confirm, the total baking time will be around 1.5–2 hours. Enjoy!

FAQ

How do you keep sweet potato chips from burning?+

Use a low oven temperature of 250°F (120°C) and bake for 45-60 minutes, checking frequently toward the end. Sweet potatoes burn easily because their high sugar content caramelizes and scorches above 350°F, so a slow, gentle bake is key to crispy chips without burnt edges.

Can you make sweet potato chips ahead of time?+

Yes! Once cooled completely, store them in an airtight container at room temperature for up to 3 days. They'll stay crispest if you include a paper towel in the container to absorb any moisture that accumulates.

Why should you salt sweet potato chips before cooking?+

Salting the raw slices and letting them drain in a colander for 20-30 minutes draws out excess moisture through osmosis, which helps them crisp up more evenly in the oven. Pat them dry after draining to remove any remaining surface moisture.

What's the best way to slice sweet potatoes for chips?+

Use a mandoline or sharp chef's knife to cut them as uniformly thin as possible—aim for about 1/8 inch thick so they cook evenly. Keep the skin on for extra nutrients and texture, and wash the potatoes thoroughly beforehand.