
Rich and deeply caramelized, these melting sweet potatoes are the kind of dish I turn to whenever I want a vegetable centerpiece that everyone loves. The maple–miso glaze transforms simple sweet potatoes into something luxurious, perfect for family gatherings or adding a touch of elegance to an ordinary weeknight dinner.
I was skeptical the first time I mixed miso and maple syrup but after one bite these potatoes became an instant favorite whenever I host friends who need impressing
Ingredients
- Pure maple syrup: brings rich natural sweetness that plays off the earthy potatoes Look for real maple syrup for best flavor
- White miso: offers deep umami and complexity Try to select refrigerated fresh miso for a cleaner taste
- Unseasoned rice vinegar: brightens the maple glaze and balances richness Choose clear unseasoned vinegar for clean acidity
- Reduced-sodium soy sauce: enhances depth and rounds out the flavors Opt for a good quality naturally brewed option
- Water: helps smooth the glaze and keeps potatoes moist during roasting Filtered water lets other flavors shine
- Neutral oil: like grapeseed or canola ensures even browning without adding extra flavor Pick an oil with a high smoke point
- Sweet potatoes: preferably orange fleshed and heavy for their size provide a creamy melt-in-your-mouth bite Look for firm specimens without any greenish tinge
- Kosher salt: layers in seasoning throughout Use a coarse flaky kosher salt for best effect
- Unsalted butter: brings richness and helps brown the potatoes Go for European style if you like extra depth
- Flaky sea salt: adds a final burst of crunch and minerality Maldon is my go-to but any good finishing salt will do
Instructions
- Prep the Oven:
- Preheat your oven to four hundred twenty five degrees Fahrenheit and set a rack in the center You want a blazing hot oven to help caramelize the sweet potatoes
- Whisk the Glaze:
- Whisk together the maple syrup white miso rice vinegar and soy sauce in a medium bowl until totally smooth Stir in water until well combined The mixture should be glossy and pourable
- Coat the Potatoes:
- In a large bowl toss your sweet potato rounds with half the oil and half a teaspoon kosher salt Turn them so every cut surface is slicked with oil for maximum browning
- Sear for Crispy Edges:
- Heat the remaining oil in a large oven safe skillet over medium high Once the oil shimmers add the sweet potato rounds cut side down Cook without moving them for two to three minutes until the bottoms are deep golden brown Flip each round season with remaining salt and brown the other side for one to two minutes more
- Butter Basting:
- Drop in the butter and tilt the pan so it melts into a puddle Spoon bubbling butter constantly over all the potatoes Let the edges get fragrant and crisp This is where real flavor develops
- Add the Glaze:
- Pour in the maple miso mixture It should come about halfway up the sides of the potatoes Bring to a steady simmer so the glaze starts to thicken and bubble
- Roast Until Melting:
- Transfer the skillet to the preheated oven and roast for twenty three to twenty eight minutes The potatoes should be completely tender when pierced and the sauce thickened to a syrupy consistency
- Finish and Serve:
- Move the potatoes to a serving platter Whisk the sauce left in the pan until smooth and drizzle it generously over everything Finish with a sprinkle of flaky sea salt if you want a punch of texture and flavor

Miso is my secret ingredient for adding deep flavor that surprises everyone at the table It reminds me of the first time I served these to my dad He guessed there was something unusual and was shocked it was his beloved miso paste paired with sweet potatoes
Storage Tips
Leftover melting sweet potatoes store well in a covered container in the fridge for up to three days Reheat in a hot oven or air fryer to maintain crisp edges The sauce tends to thicken so loosen it with a splash of water if needed
Ingredient Substitutions
You can swap out white miso for yellow if you like more punch Just avoid red miso which is overpowering Maple syrup can be replaced with honey for a floral note If you only have seasoned rice vinegar reduce the salt slightly for balance
Serving Suggestions
These sweet potatoes make a gorgeous side with roasted chicken pork or a simple seared tofu For a showstopper holiday feast scatter with toasted pecans and chopped parsley They even shine as a hearty vegetarian main with a grain salad
Cultural and Historical Context
The inspiration for melting potatoes comes from the classic French pomme fondant while sweet potatoes have long been a comfort food staple in the American South Pairing the earthy sweetness of American sweet potatoes with Japanese miso and maple creates an unexpected global mash up
Seasonal Adaptations
For an autumn twist swap in warm spices like cinnamon or smoked paprika Springtime calls for a scattering of fresh chives or tarragon before serving In summer try the dish with grilled stone fruit or a squeeze of fresh lime Helpful notes The sauce can be doubled for extra drizzling on leftovers Cutting all potatoes to the same thickness ensures even cooking Take care not to overcrowd your skillet otherwise the potatoes will steam instead of brown
Success Stories
Friends who say they dislike sweet potatoes often become fans after tasting these The balance of sweet and savory always wins over skeptical eaters My goddaughter once ate fifteen of these at Thanksgiving and still asked for the recipe
Freezer Meal Conversion
To freeze slice and roast the sweet potatoes until just tender Skip the sauce for now Cool completely then freeze in a single layer When ready to serve warm in oven and finish with freshly made maple miso glaze for best flavor

Melting sweet potatoes deliver both elegance and comfort in a single skillet Serve them hot for the glossiest sauce and deepest flavor.
Recipe FAQs
- → What does miso add to sweet potatoes?
Miso brings a savory umami depth and subtle saltiness, enhancing the natural sweetness of the potatoes.
- → Can I substitute another vinegar for rice vinegar?
A mild white wine vinegar or apple cider vinegar works, but keep the quantity the same for balance.
- → Why cook the potatoes cut-side down first?
Cooking cut-side down caramelizes the surface, adding flavor and a golden color to each round.
- → How do I know when sweet potatoes are done?
They should be fork-tender and the sauce slightly thickened, ensuring a meltingly soft texture.
- → Is it necessary to use cast iron?
Cast iron provides even heat and crispness, but any oven-safe skillet will produce good results.
- → What can I serve alongside these potatoes?
They pair well with grilled meats, salads, or as a flavorful vegetarian centerpiece.