Side Dishes
Transforming sweet potatoes into elegant accordion folds delivers restaurant-quality drama with minimal effort—crispy celery crowns hugging tender, nutmeg-kissed layers. This technique turns humble sweet potatoes into a showstopping side that pairs perfectly with roasted meats or stands alone as a vegetarian centerpiece.
The secret lies in precise slicing and folding, creating those signature pleats that crisp beautifully in the oven.
What sets this recipe apart is the crispy celery crown—thinly sliced celery baked until golden and slightly caramelized, adding texture and earthy flavor to every bite. Nutmeg and cinnamon infuse the sweet potato filling with warm, aromatic depth, while a touch of butter ensures the folds stay tender.
The result is a dish that’s both impressive and approachable, perfect for special occasions or weeknight dinners.
Ready in just 30 minutes, this recipe requires only a few simple ingredients and one sheet pan for easy cleanup. The accordion folds create a visually stunning presentation, but the real magic is in the balance of textures—crispy edges, tender filling, and the bright, fresh crunch of celery.
Serve with a drizzle of honey or a sprinkle of flaky salt to elevate the flavors even further.
Whether you're hosting a dinner party or simply craving a gourmet side, this accordion sweet potato delivers restaurant-worthy results without the fuss. The technique is foolproof once you master the folds, and the flavor combinations are endlessly adaptable. Let’s get started!
Ingredients for accordion sweet potato
Sweet potatoes, celery, nutmeg, and butter transform into elegant accordion folds with crispy crowns.
| Ingredient | Amount | Notes |
|---|---|---|
| Sweet Potatoes 🍠 | 2 large | Organic preferred, uniform size |
| Celery Stems 🧅 | 1 bunch | Thinly sliced into ribbons |
| Unsalted Butter 🧈 | 2 tbsp | Cold, cubed for crisping |
| Ground Nutmeg 🌿 | ½ tsp | Freshly grated preferred |
| Ground Cinnamon 🌶️ | ½ tsp | High-quality for depth |
| Flaky Sea Salt 🧂 | ¼ tsp | For garnish and seasoning |
| Extra-Virgin Olive Oil 🫒 | 1 tbsp | For brushing and crisping |
| Raw Honey 🍯 | 1 tbsp | Optional drizzle for serving |
| Garlic Cloves 🧄 | 1 whole | Minced for celery crown |
| Fresh Thyme Leaves 🌿 | ¼ tsp | Chopped for celery crown |
| Black Peppercorns 🌶️ | ¼ tsp | Freshly cracked for celery |
| All-Purpose Flour 🌾 | 1 tbsp | For dusting folds |
The sweet potatoes are the foundation—organic, uniform-sized ones ensure even cooking and folding. Whole Foods or local farmers markets carry the best quality, with vibrant orange flesh and smooth skins. If you can't find organic, conventional works fine, just scrub them well. For the celery crown, look for crisp, pale green stalks—avoid any with yellowed leaves or slimy bases. The nutmeg should be freshly ground; pre-ground loses potency quickly. Penzeys sells excellent whole nutmeg if you want to invest in quality. Thinly slicing the celery into ribbons (about 1/8-inch thick) is key—use a sharp mandoline for precision.
No fresh nutmeg? Mace works in a pinch, though it has a slightly different flavor profile. Substituting pumpkin pie spice (at half the amount) gives warmth but lacks the depth of pure nutmeg. For the celery crown, leeks or fennel can replace celery if needed, though the flavor will differ slightly. If you're avoiding gluten, skip the flour—just dust with a tiny bit of cornstarch instead. The butter should be cold and cubed when baking to create maximum crispiness. For a dairy-free version, use vegan butter or coconut oil, though the texture will be slightly softer.
Store leftover sweet potatoes in an airtight container for up to 4 days in the fridge—they reheat beautifully. The celery crown loses crispness after 2 days, so make it fresh if possible. For longer storage, freeze the folded sweet potatoes (unbaked) for up to 3 months—thaw and bake straight from frozen. The crispy celery crown is best served immediately, but you can reheat it briefly in a dry skillet if needed. Garnish with flaky salt and honey just before serving to preserve texture and brightness.
Why You'll Love This Recipe
- One-Pan Magic: I swear by this recipe because it’s literally one pan, one knife, and zero cleanup stress. Just slice those sweet potatoes into thick rounds, stack them like a fan with celery stems tucked in between—no peeling, no fuss—and roast until caramelized. The butter pools in the crevices, and the nutmeg-cinnamon blend does all the flavor work for you.
- Warm Spice Hug: That first bite of crispy exterior giving way to tender, buttery sweet potato? It’s like dessert for dinner. The celery adds this subtle earthy depth, while the nutmeg and cinnamon turn it into a cozy hug in edible form—no one will believe it’s just a side dish.
- Meal Prep MVP: Between us, this is my go-to for lunches all week. Roast a big batch on Sunday, let them cool, and store in the fridge. Reheat in the microwave or oven, and the accordion layers keep them from turning soggy. My kids grab them straight from the fridge—no complaints, just seconds.
- Budget-Friendly Luxury: Sweet potatoes are cheap, celery lasts forever, and a little butter goes a long way. This recipe stretches to feed four for under $5, yet tastes like you spent hours on it. Honestly, it’s the kind of dish that makes you feel fancy without breaking the bank—or your willpower.
Step-by-step instructions for crispy celery crown over nutmeg-kissed sweet potatoes
Transform simple ingredients into an elegant, restaurant-worthy dish with perfect texture contrasts.
Prepare the Sweet Potato Filling
Preheat your oven to 400°F. Pierce the 2 large sweet potatoes in several places with a fork, then microwave them for 5-7 minutes until they yield slightly to pressure. This makes them easier to slice without falling apart.
Cut each potato lengthwise into ¼-inch thick slices, then carefully separate the slices into individual rounds. Arrange them on a parchment-lined baking sheet, overlapping slightly. Brush each layer generously with 1 tablespoon extra-virgin olive oil, then sprinkle evenly with 0.5 teaspoon ground nutmeg, 0.5 teaspoon ground cinnamon, and 0.25 teaspoon flaky sea salt.
Bake for 20-25 minutes, flipping halfway through, until the edges are golden brown and the filling becomes tender when pierced with a knife. The nutmeg and cinnamon will develop an aromatic depth that's essential to the dish's character.
Create the Celery Crown
While the sweet potatoes bake, prepare the celery crown by slicing the 1 bunch celery stems into ¼-inch thick ribbons using a sharp mandoline or chef's knife. The ribbons should be uniform in thickness to ensure even cooking.
In a small bowl, combine 1 tablespoon all-purpose flour, 0.25 teaspoon chopped fresh thyme leaves, 0.25 teaspoon freshly cracked black peppercorns, and 1 minced garlic clove. Toss the celery ribbons with this mixture until evenly coated. This step creates a flavorful crust that will crisp beautifully.
Heat 1 tablespoon extra-virgin olive oil in a large skillet over medium-high heat. Add the celery ribbons in a single layer, being careful not to overcrowd. Cook for 3-4 minutes, stirring occasionally, until the edges are deep golden brown and the celery is tender-crisp. Remove and set aside on a paper towel-lined plate to drain excess oil.
Assemble the Accordion
Once the sweet potato slices are tender, remove them from the oven and let them cool slightly for 2 minutes. Working quickly, brush the tops of the slices with 2 tablespoons cold cubed unsalted butter to create a golden, crispy finish.
Return the baking sheet to the oven for 3-5 minutes until the butter melts and the tops become deeply golden brown. This final step is crucial for achieving the signature crispy texture that makes this dish special.
To assemble, place a generous spoonful of the celery crown mixture on top of one sweet potato slice, then layer another slice on top. Repeat until you've used all the ingredients, creating a neat accordion shape. Drizzle with 1 tablespoon raw honey for a touch of sweetness that balances the savory-spiced filling.
Pro Tips For Making Accordion Sweet Potato
- STEAM FIRST, THEN BAKE: Don’t skip the steam step—this isn’t just about softening the potatoes, it’s about keeping the accordion folds intact. I used to bake them straight from raw and ended up with collapsed, sad layers. Preheat the oven to 400°F (200°C) after steaming for 8-10 minutes, covered with foil. The residual steam turns the butter into a silky sauce instead of drying out the edges.
- TRIM CELEERY LIKE A PRO: Celery stems aren’t just filler—they add texture and prevent the sweet potatoes from turning mushy. Cut them into 1-inch chunks, then blanch them for 2 minutes in boiling water before draining. This softens them just enough to hold their shape without dissolving into the butter. (Yes, it’s an extra step, but your accordion won’t fall apart.)
- USE COLD BUTTER, NOT ROOM TEMP: The butter in this recipe isn’t just for flavor—it’s the glue holding those layers together. Melt it just until liquid (not hot, not bubbling) and let it cool for 5 minutes before mixing. Cold butter mixes unevenly and can scald the sweet potatoes, turning them gritty instead of creamy. Trust me, your first bite will taste like the difference between a soggy sandwich and a buttery masterpiece.
- WEIGHT DOWN THE ACCORDION: Folding the sweet potatoes into an accordion is half the battle—keeping them folded is the other half. After assembling, place a small baking dish on top and weigh it down with a can of tomatoes or a heavy skillet. This prevents the layers from springing open while baking. (No, you won’t eat the tomatoes. They’re just for stability.)
Essential equipment for accordion sweet potato
Sheet Pan Essentials
The half-sheet pan (18x13-inch) is your best friend for this recipe—it provides enough space for even baking while keeping cleanup minimal. I recommend a heavy-duty stainless steel pan like All-Clad or Williams Sonoma for superior heat distribution and durability.
Avoid thin, flimsy pans that can warp under high heat. Line it with parchment paper or a silicon baking mat to prevent sticking and make folding the sweet potatoes easier later. 🔥
Mandoline Precision
A sharp mandoline slicer is non-negotiable for achieving those uniform ¼-inch thick sweet potato slices and celery ribbons. My go-to is the OXO Good Grips—it's affordable, easy to use, and comes with safety guards.
For the celery crown, set the mandoline to ⅛-inch thick to create delicate ribbons that crisp beautifully. Always use the hand guard and keep your fingers clear of the blade.
If you don't own a mandoline, a sharp chef's knife and steady hand work, but it takes more time and patience.
Butter Tools Matter
For the crispy butter finish, use cold, cubed unsalted butter (not melted) to create maximum browning. I prefer Plugrá or Land O'Lakes for their high-fat content and clean flavor.
To cube butter efficiently, chill it for 30 minutes before grating it with a microplane or cutting it with a sharp knife. Store any leftover butter in an airtight container in the fridge for up to 3 weeks.
For extra crispiness, sprinkle the cubed butter with a pinch of flaky salt before baking—it enhances the Maillard reaction for deeper flavor.
Celery Prep Hacks
Preventing celery from turning mushy starts with proper prep. Trim the ends and remove any stringy fibers before slicing. For extra crispness, blanch the celery ribbons in boiling water for 30 seconds before tossing with flour—this firms up the texture.
I also recommend using a fine-mesh sieve to drain excess water after blanching. For flavor depth, add ½ teaspoon lemon zest to the celery mixture before baking—it brightens the earthy notes beautifully. 🌿
Folding Technique
Mastering the accordion fold requires a light touch and patience. Use a long, flexible spatula (like OXO Good Grips) to gently lift and fold the sweet potato slices without tearing.
Start with one slice as your base, add a spoonful of celery crown, then fold the next slice over it at a slight angle. Repeat until you've used all the ingredients, creating a neat, fan-like shape.
For extra stability, lightly dust the folds with 1 tablespoon all-purpose flour before baking—it helps them hold their shape better. 💫
Oven Thermometer
Ovens run hot or cold, and precision matters for this recipe. Invest in a digital oven thermometer like Thermoworks Oven Thermometer to ensure your oven hits exactly 400°F. Place it near the baking rack where your sheet pan will sit.
If your oven runs hot, reduce the temperature by 25°F to prevent over-browning. For even cooking, rotate the pan halfway through baking if your oven has hot spots. This small investment ensures consistent, restaurant-quality results every time. ⚡
Nutrition facts
Frequently asked questions
Can I make accordion sweet potatoes ahead of time?
Assemble the accordion folds up to 24 hours ahead and refrigerate them in an airtight container. When ready to bake, let them sit at room temperature for 30 minutes before proceeding. For the celery crown, make it fresh day-of for best texture, but you can prep the celery ribbons (raw) up to 1 day ahead and store them in the fridge. Reheat any leftovers in a 350°F oven for 10-15 minutes to restore crispiness.
What if my sweet potato slices keep falling apart?
This usually happens if the potatoes aren't cooked enough before slicing. For extra stability, microwave the whole potatoes for 10 minutes (pierced) before slicing, or bake them at 400°F for 15 minutes first. If they still fall apart, try using a mandoline with a thicker setting (⅛-inch) or gently press slices together with a paper towel before folding.
Can I substitute regular potatoes for sweet potatoes?
While you can use regular potatoes, the texture and flavor won't be the same. Sweet potatoes have a natural sweetness and creamier texture that works perfectly with the nutmeg and celery crown. If you must substitute, use Yukon Gold potatoes (for creaminess) and reduce the nutmeg to ¼ teaspoon—they're less sweet and won't caramelize as beautifully. For color, add a pinch of turmeric to mimic the orange hue.
How do I make this dish vegetarian or vegan?
This recipe is already vegetarian! For vegan, simply replace the unsalted butter with vegan butter or coconut oil (though texture may be slightly softer). The celery crown stays the same, and the nutmeg/cinnamon flavors work beautifully without animal products. Serve with a cashew cream drizzle or maple glaze for extra richness. All other ingredients are plant-based.
What's the best way to reheat leftovers?
For best results, reheat in a 350°F oven for 10-12 minutes on a parchment-lined tray to restore crispiness. If using a microwave, cover with a damp paper towel and heat for 30-45 seconds—this prevents drying. For extra crunch, broil for 1-2 minutes at the end (watch closely!). The celery crown reheats best when warmed in a dry skillet over medium heat for 1-2 minutes.