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Baked Sweet Potato Wedges with Cinnamon Sugar
There's something magical about the way cinnamon and sugar dance together on roasted sweet potatoes—especially when the air turns crisp and the days grow shorter. I first created this recipe during a particularly brutal January when the world outside my kitchen window looked like a black-and-white photograph. The vibrant orange of the sweet potatoes seemed to defy winter's monochrome grip, and the warm scent of cinnamon drifting through my apartment felt like rebellion against the cold.
This isn't just another side dish; it's edible hygge. My family now requests these wedges every Sunday during football season, and I've served them at everything from casual potlucks to Thanksgiving dinner where they managed to steal attention from the turkey. The beauty lies in their deceptive simplicity—what appears to be basic roasted vegetables transforms into something that makes grown adults close their eyes and sigh with satisfaction.
The secret is in the technique: a two-stage baking process that creates that coveted contrast between a caramelized exterior and a cloud-soft interior. The cinnamon sugar isn't just tossed on at the end—it forms a delicate shell that crackles slightly under your fork, giving way to the sweet, earthy flesh beneath. These wedges have converted more sweet-potato-skeptics than I can count, including my father-in-law who swore he hated them until he accidentally grabbed one at a family gathering.
Why This Recipe Works
- Two-Stage Baking: Starting at high heat creates caramelization, then lowering the temperature ensures creamy centers without burning the cinnamon sugar
- Cornstarch Coating: A light dusting creates an extra-crispy exterior that holds up to the sweet coating
- Brown Butter Base: Tossing in nutty brown butter before roasting adds depth that prevents the sweetness from becoming one-dimensional
- Triple Cinnamon Hit: Ground cinnamon in the coating, cinnamon sugar finish, and optional cinnamon-stick-infused oil for maximum flavor complexity
- Make-Ahead Friendly: Can be par-baked and finished just before serving, making them perfect for holiday meals
- Balanced Sweetness: The earthy sweet potatoes and touch of salt prevent this from becoming cloying, appealing to both kids and adults
Ingredients You'll Need
The ingredient list here is intentionally short—each component has been chosen for maximum impact. Quality matters tremendously when you're working with fewer than ten items, so let's talk about what to look for when shopping.
Sweet Potatoes
Look for medium-sized sweet potatoes that feel heavy for their size and have smooth, unblemished skin. The orange-fleshed varieties (often labeled as "garnet" or "jewel") work best here—their natural sweetness intensifies during roasting without becoming grainy. Avoid the larger, more cylindrical sweet potatoes often sold as "yams" in American supermarkets; these tend to be starchier and less sweet. If you can only find smaller potatoes, that's fine—just adjust the cutting technique to maintain similar wedge sizes.
Cinnamon
Please, please use fresh cinnamon. That jar that's been sitting in your spice cabinet since 2019 has lost most of its volatile oils—the compounds that give cinnamon its complex warmth. I prefer Ceylon cinnamon (sometimes labeled as "true cinnamon") for its subtle, citrusy notes, but Korintje cinnamon works beautifully for a bolder flavor. Buy in small quantities from stores with high turnover, and store in a cool, dark place.
Sugar
I use a combination of granulated sugar for structure and light brown sugar for its molasses notes. The brown sugar also helps create those irresistible little pockets of caramelized goodness. If you're avoiding refined sugar, coconut sugar works wonderfully here—it has a lower glycemic index and adds a subtle butterscotch note that complements the sweet potatoes beautifully.
Butter
European-style butter (higher fat content) makes a noticeable difference in flavor, but regular butter works perfectly. The key is browning it properly—cooking until the milk solids turn golden and nutty. This step adds incredible depth and prevents the dish from tasting like dessert. For a dairy-free version, coconut oil works, though you'll miss some of that nutty complexity.
Cornstarch
This is my secret weapon for extra-crispy edges. The cornstarch absorbs surface moisture and creates a thin, crisp coating that holds up to the cinnamon sugar. Arrowroot starch works as a substitute if you're avoiding corn.
How to Make Baked Sweet Potato Wedges with Cinnamon Sugar
Prep and Cut the Sweet Potatoes
Preheat your oven to 425°F (220°C). Scrub the sweet potatoes thoroughly but don't peel them—the skin becomes deliciously crispy and adds textural interest. Cut each potato in half lengthwise, then cut each half into 4-6 wedges, depending on the potato size. Aim for uniform thickness (about ¾-inch at the thickest part) so they cook evenly. Place the wedges in a large bowl of cold water as you work to prevent oxidation.
Soak for Maximum Crispiness
Let the wedges soak in cold water for at least 30 minutes, or up to 2 hours. This step removes excess surface starch, resulting in crispier edges. I've tested this recipe dozens of times, and the soaking step makes a remarkable difference—skip it at your own crispiness peril. If you're short on time, even a 15-minute soak is better than nothing.
Brown the Butter
While the potatoes soak, brown your butter. Place 4 tablespoons of butter in a small saucepan over medium heat. Cook, swirling frequently, until the butter foams and the milk solids turn golden brown and smell nutty—about 5-7 minutes. Watch carefully; it goes from perfect to burnt quickly. Pour into a heat-safe bowl to stop the cooking process. You should have about 3 tablespoons of liquid gold.
Create the Coating Mixture
Drain the sweet potatoes and pat them very dry with clean kitchen towels or paper towels. In a large bowl, whisk together 2 tablespoons cornstarch, 1 teaspoon kosher salt, ½ teaspoon black pepper, and 1 teaspoon ground cinnamon. This dry mixture will help the butter adhere and create that coveted crispy exterior.
Coat the Wedges
Add the dried sweet potato wedges to the bowl with the cornstarch mixture and toss until each piece is lightly coated. Drizzle with the brown butter and toss again until everything is evenly coated. The cornstarch will absorb the butter and create a thin paste that will crisp up beautifully in the oven.
Arrange on Baking Sheet
Line a large rimmed baking sheet with parchment paper for easy cleanup. Arrange the wedges in a single layer, cut side down, with space between each piece. Overcrowding is the enemy of crispiness—use two sheets if necessary. The cut side down maximizes surface contact for better caramelization.
First Stage of Baking
Bake at 425°F for 15 minutes. This high-heat blast jumpstarts the caramelization process. You'll see the bottoms beginning to turn golden and the edges starting to crisp. Resist the urge to flip them too early—let them develop that golden crust.
Flip and Add Cinnamon Sugar
Remove the pan from the oven and flip each wedge. In a small bowl, combine 3 tablespoons granulated sugar, 2 tablespoons light brown sugar, 1½ teaspoons ground cinnamon, and ¼ teaspoon kosher salt. Sprinkle this mixture evenly over the flipped wedges, concentrating on the cut sides where it will caramelize best.
Second Stage of Baking
Reduce the oven temperature to 375°F (190°C) and return the pan to the oven. Bake for another 15-20 minutes, until the wedges are tender when pierced with a fork and the sugar has caramelized into a glossy coating. The edges should be deeply golden and slightly crispy.
Final Touch and Serve
Let the wedges cool for 5 minutes on the pan—this allows the sugar to set slightly. Transfer to a serving platter and, if desired, dust with a tiny bit more cinnamon or a light sprinkle of flaky sea salt for contrast. Serve warm, though they're surprisingly delicious at room temperature too.
Expert Tips
Temperature Matters
An oven thermometer is your best friend here. Many home ovens run 25-50°F off, which can mean the difference between caramelized and burnt. The two-stage baking process is forgiving, but accurate temperatures ensure consistent results.
Dry Thoroughly
I can't overstate how important it is to dry the wedges completely after soaking. Water is the enemy of crispiness. I lay them out on a clean kitchen towel and press another towel on top, then let them air dry for 5 minutes while the oven heats.
Don't Rush the Soak
If you only have 15 minutes, that's fine, but the full 30-minute soak really does make a difference. I've done side-by-side tests, and the longer-soaked wedges are noticeably crispier. Use this time to prep the rest of your meal.
Single Layer is Key
Overcrowding leads to steaming, not roasting. If your baking sheet is crowded, use two. The wedges should have space between them for air circulation. This applies to almost all roasted vegetables, but especially here where we want caramelization.
Sugar Timing
Adding the sugar too early leads to burning. The two-stage baking process ensures the sugar caramelizes without becoming bitter. If you prefer less sweetness, you can reduce the sugar by half or just sprinkle it on a few wedges.
Make-Ahead Magic
These can be par-baked up to 2 days ahead. Bake through step 7, cool completely, and refrigerate. When ready to serve, bring to room temperature and finish with the cinnamon sugar at 375°F for 15-20 minutes.
Variations to Try
Spicy-Sweet Version
Add ÂĽ teaspoon cayenne pepper to the cornstarch mixture and use chili-infused brown butter. The heat plays beautifully against the sweet cinnamon sugar, creating a more sophisticated flavor profile that pairs wonderfully with roasted meats.
Holiday Version
Replace half the cinnamon with pumpkin pie spice and add ÂĽ cup chopped pecans during the last 10 minutes of baking. Drizzle with maple syrup right before serving for an extra-decadent holiday side dish.
Savory-Herbal Twist
Omit the cinnamon sugar entirely and instead toss the roasted wedges with fresh thyme, rosemary, a drizzle of balsamic glaze, and flaky sea salt. This version works beautifully as a side for salmon or grilled chicken.
Maple-Glazed Version
Replace the sugar with 2 tablespoons pure maple syrup mixed with 1 tablespoon melted butter. Brush this on during the last 10 minutes of baking. The maple creates a beautiful shiny glaze with more complex flavor than plain sugar.
Storage Tips
Refrigerator Storage
Store cooled wedges in an airtight container in the refrigerator for up to 4 days. The sugar coating may become slightly sticky, but they'll still taste delicious. To reheat, spread on a baking sheet and warm at 350°F for 10-15 minutes until heated through and crisped again.
Freezer Instructions
These freeze beautifully! Let them cool completely, then arrange in a single layer on a parchment-lined baking sheet and freeze until solid. Transfer to freezer bags for up to 3 months. Reheat from frozen at 375°F for 20-25 minutes, adding the cinnamon sugar during the last 10 minutes of baking.
Make-Ahead Options
You can prep the sweet potatoes through the soaking step up to 24 hours ahead. Store the drained, dried wedges in a zip-top bag in the refrigerator. The brown butter can be made up to 1 week ahead and stored in the refrigerator—just reheat until liquid before using.
Frequently Asked Questions
You absolutely can, but you'll need to adjust the approach. Russet potatoes benefit from the same technique but omit the cinnamon sugar. Instead, try them with rosemary, garlic, and parmesan. The soaking and two-stage baking process works wonderfully for any roasted potato wedges.
Sogginess usually comes from one of three issues: 1) Not drying thoroughly after soaking, 2) Overcrowding the pan, or 3) Not enough heat. Make sure each wedge is completely dry before coating, use two pans if needed to avoid crowding, and ensure your oven is properly preheated. An oven thermometer is invaluable.
Yes! Air fry at 375°F for 12-15 minutes, shaking halfway through. Add the cinnamon sugar during the last 3-4 minutes of cooking. You'll likely need to work in batches—don't overcrowd the basket. They won't get quite as caramelized as oven-baked, but they're still delicious and faster.
The recipe is naturally gluten-free as written. For vegan, simply substitute the brown butter with coconut oil or a good quality vegan butter. Coconut oil adds a subtle tropical note that pairs beautifully with the sweet potatoes and cinnamon.
Sugar burns at high temperatures, which is why we add it during the second stage at a lower temperature. If yours is still burning, your oven might run hot. Try adding the sugar during the last 10 minutes only, or reduce the final baking temperature to 350°F. Every oven is different!
The oven is best for maintaining crispiness: 350°F for 10-15 minutes. A toaster oven works great for smaller portions. The microwave will make them soggy, though they're still tasty if you're not texture-obsessed. For a quick fix, reheat in a dry skillet over medium heat, turning occasionally.
Baked Sweet Potato Wedges with Cinnamon Sugar
Ingredients
Instructions
- Prep: Preheat oven to 425°F. Soak cut sweet potato wedges in cold water for 30 minutes.
- Brown butter: Cook butter in a small saucepan over medium heat until golden and nutty, 5-7 minutes.
- Coat: Drain and thoroughly dry wedges. Toss with cornstarch, salt, pepper, and 1 tsp cinnamon. Drizzle with brown butter.
- First bake: Arrange on parchment-lined baking sheet, cut side down. Bake 15 minutes at 425°F.
- Add sugar: Combine sugars, remaining cinnamon, and salt. Flip wedges and sprinkle with sugar mixture.
- Second bake: Reduce heat to 375°F and bake 15-20 minutes more until tender and caramelized.
- Serve: Cool 5 minutes before serving. Optional: dust with flaky sea salt.
Recipe Notes
Don't skip the soaking step—it removes surface starch for extra-crispy edges. Make sure to dry thoroughly before coating. These can be par-baked up to 2 days ahead and finished just before serving.
