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Why This Recipe Works
- Restaurant-style crunch: A dusting of cornstarch and a screaming-hot sheet pan create shatter-crisp edges without deep-frying.
- Two-temperature roast: Start at 425 °F for caramelization, finish at 375 °F for custard-soft centers.
- Brown-butter herb infusion: Butter is toasted until the milk solids turn hazelnut-brown, then fresh herbs steep in the residual heat.
- No-peel bliss: The skin becomes papery-thin and packed with fiber—save time and add nutrients.
- Make-ahead friendly: Par-roast and refrigerate up to three days; reheat at 400 °F for ten minutes.
- Holiday hero: Sheet-pan space means the main oven stays free for turkey, wellington, or nut-roast.
Ingredients You'll Need
Sweet potatoes are the star, but the supporting cast is what pushes this dish into crave-worthy territory. Look for firm, unblemished tubers—orange-fleshed Garnet or Beauregard varieties caramelize best. If you can only find pale sweet potatoes (often mislabeled as “yams”), they’ll still work, but expect a slightly drier texture.
Sweet potatoes: 2 ½ lb (about 4 medium) delivers a generous side for six. Scrubs clean but keep the skin; it’s loaded with antioxidants and turns irresistibly crisp.
Cornstarch: Just 1 tablespoon is the secret weapon for extra crunch. Arrowroot or potato starch swap 1:1 if you’re avoiding corn.
Extra-virgin olive oil: A high-quality, fruity oil coats the wedges and helps conduct heat. Choose a mild variety so the herb butter remains front-and-center.
Unsalted butter: You’ll brown 6 tablespoons; the nutty aroma is your cue it’s ready. Grass-fed butter has a higher smoke point and deeper flavor.
Fresh herbs: A 50-50 mix of woody rosemary and soft thyme gives resinous punch and grassy lift. Strip leaves from stems—woody stems can be reserved for stock.
Sea salt flakes: Maldon or fleur de sel dissolve on contact with hot potatoes, giving tiny pops of salinity. Save some for tableside crunch.
Freshly ground black pepper: Tellicherry or mixed peppercorns add floral heat without overwhelming the sweet potatoes.
How to Make Baked Sweet Potato Wedges with Herb Butter and Sea Salt for Cozy Sides
Preheat & heat your sheet pan
Place a rimmed 13×18-inch sheet pan on the middle rack of the oven and preheat to 425 °F (220 °C). A screaming-hot surface jump-starts caramelization and prevents sticking. Leave the pan inside for at least 10 minutes after the oven beeps.
Cut uniform wedges
Slice each sweet potato in half lengthwise, then cut each half into 4 long wedges (total 8 per potato). Aim for ¾-inch thickness at the skin edge; too thin and they’ll burn, too thick and they steam. Place in a large bowl and cover with cold water for 15 minutes to remove excess starch—this maximizes crunch.
Season & coat
Drain wedges and spin dry in a salad spinner or pat aggressively with a kitchen towel. Return to the dry bowl; drizzle with 3 tablespoons olive oil, sprinkle 1 tablespoon cornstarch, 1 teaspoon kosher salt, and ½ teaspoon black pepper. Toss until each wedge looks lightly frosted—this thin starchy film is your crunch insurance.
Arrange skin-side down
Carefully remove the hot sheet pan, brush lightly with oil, and line wedges up like dominoes—skin side down, flesh side up—leaving ¼-inch gaps for steam escape. Overcrowding equals sog city.
Two-temperature roast
Slide onto the middle rack and roast 15 minutes. Reduce temperature to 375 °F (190 °C) without opening the door, and continue roasting 10–12 minutes more. The initial blast browns the exterior; the lower heat cooks the interior to creamy perfection.
Brown the butter
While the wedges roast, melt 6 tablespoons unsalted butter in a light-colored saucepan over medium heat. Swirl occasionally; the foam will subside, milk solids will turn chestnut, and the aroma will go from buttery to nutty to toasted croissant. Remove from heat the moment you see amber flecks—carry-over heat will continue browning. Immediately drop in 2 teaspoons minced rosemary and 1 teaspoon minced thyme; the herbs will sizzle and perfume the butter.
When wedges are fork-tender and edges are blistered, pull the pan from the oven. Brush generously with half of the herb brown butter, sprinkle with ½ teaspoon flaky sea salt, and return to the oven for 2 minutes to set the glaze. Transfer to a platter, drizzle with remaining butter, crack more pepper on top, and serve hot.
Expert Tips
Sheet-pan scream test
Flick a drop of water onto the preheated pan; if it dances and evaporates in 2 seconds, you’re ready. Too cool = steamed potatoes.
Dry = crispy gospel
After soaking, spin or towel-dry until no visible moisture remains. Water is the enemy of crunch.
Flip once, maybe
Resist the urge to flip halfway. The contact side develops a lacquer-like crust; flipping can tear it.
Color cue for browning butter
Use a stainless pan, not non-stick, so you can see the milk solids turn hazelnut. Once it smells like toffee, pull it off.
Par-roast & freeze
Under-roast by 5 minutes, cool, freeze on a tray, then bag. Reheat from frozen at 425 °F for 15 minutes—weeknight magic.
Vegan swap
Sub cultured vegan butter or refined coconut oil; add ½ tsp nutritional yeast for nuttiness.
Variations to Try
- Smoky paprika + cumin: Replace cornstarch with 1 tsp smoked paprika and ½ tsp ground cumin for a Spanish twist.
- Maple-sriracha glaze: Whisk 2 Tbsp maple syrup and 1 tsp sriracha into the brown butter for sweet heat.
- Parmesan-garlic: Sprinkle ¼ cup finely grated Parm and ½ tsp garlic powder during the final 2-minute blast.
- Orange zest & sage: Swap thyme for thinly sliced sage and add ½ tsp orange zest to the butter for winter holidays.
Storage Tips
Refrigerate: Cool completely, then store in an airtight container up to 4 days. Reheat on a 400 °F sheet pan for 8–10 minutes to restore crispness—microwaves turn them rubbery.
Freeze: Arrange cooled wedges on a parchment-lined tray, freeze until solid, then transfer to a zip-top bag with as much air removed as possible. Best within 2 months. Roast from frozen at 425 °F for 18–20 minutes.
Herb butter: Store leftover butter in a sealed jar in the fridge for 1 week or freeze in ice-cube trays for 3 months. Melt over steak, corn, or winter squash.
Frequently Asked Questions
Baked Sweet Potato Wedges with Herb Butter and Sea Salt for Cozy Sides
Ingredients
Instructions
- Preheat & heat pan: Place rimmed sheet pan in oven and preheat to 425 °F for at least 10 minutes.
- Prep wedges: Cut sweet potatoes into ¾-inch wedges; soak in cold water 15 min, then dry thoroughly.
- Season: Toss wedges with olive oil, cornstarch, kosher salt, and pepper until evenly coated.
- Roast: Arrange skin-side down on hot pan. Roast 15 min at 425 °F, reduce to 375 °F, roast 10–12 min more.
- Brown butter: Melt butter over medium heat until milk solids turn chestnut; add rosemary and thyme, swirl 30 seconds.
- Finish: Brush wedges with half the herb butter, sprinkle flaky salt, return to oven 2 min. Drizzle remaining butter before serving.
Recipe Notes
For extra crunch, dust wedges with 1 tablespoon rice flour along with the cornstarch. Reheat leftovers on a wire rack at 400 °F to maintain crisp edges.
