Miso Butter Sweet Potatoes Recipe

Vegetarian Side

Miso Butter Sweet Potatoes

Crispy sweet potatoes bathed in a savory miso butter glaze, perfect for weeknight dinners

The moment these Miso Butter Sweet Potatoes hit the oven, your kitchen fills with a warm, toasty aroma and a hint of savory miso that feels instantly comforting.

I love making this dish on busy weeknights when I want something easy yet impressive, or as a show stopping side for family dinners and holiday gatherings.

One batch has me sneaking spoonfuls of the glazed potatoes before they even make it to the table, and I know you will too.

Recipe at a Glance

⏱Prep Time10 mins

🔥Cook Time35 mins

🕐Total Time45 mins

🍰Servings4 sides

🇺🇸CuisineAmerican

🔢Calories~230 per serving

Ingredients

4 medium sweet potatoes, peeled and cut into 1 inch wedges

3 tablespoons unsalted butter, melted

1 tablespoon white miso paste

1 teaspoon honey or maple syrup

1 teaspoon soy sauce or tamari

1 teaspoon rice vinegar

1 teaspoon fresh grated ginger

1/2 teaspoon garlic powder

1/4 teaspoon black pepper

Optional garnish: toasted sesame seeds and sliced green onions

Substitutions & Variations

★Use red or yam sweet potatoes if you prefer a different texture

★Swap white miso for yellow miso for a milder flavor

★Replace honey with agave or maple syrup for a vegan version

★Use fresh lime juice instead of rice vinegar for a brighter tang

★Add a pinch of crushed red pepper flakes for some heat

Step-by-Step Instructions

1

Preheat oven and prep potatoes

Preheat your oven to 425°F (220°C). Line a large baking sheet with foil or parchment paper. Pat the sweet potato wedges dry with a clean kitchen towel or paper towels, then place them in a large mixing bowl.

2

Whisk the miso butter glaze

In a small bowl, whisk together the melted butter, white miso paste, honey, soy sauce, rice vinegar, grated ginger, garlic powder, and black pepper until smooth and glossy.

3

Coat the potatoes evenly

Pour the miso glaze over the sweet potatoes and toss gently until every wedge is well coated. Arrange the wedges in a single layer on the prepared baking sheet, cut side down where possible.

4

Roast for initial caramelization

Roast the potatoes for 15 minutes to start developing caramelization on the cut sides, then carefully flip each wedge using a spatula so the skin side faces down.

5

Glaze during the last minutes

Brush or spoon extra glaze over the potatoes and continue roasting for another 10 to 15 minutes, until the edges are browned and the potatoes are tender when pierced with a fork.

6

Finish with a sticky glaze

Remove the sheet from the oven and drizzle a little more glaze over the hot potatoes, gently tossing for a glossy finish. Let them sit for 2 minutes so the glaze thickens slightly.

7

Rest briefly before serving

Allow the potatoes to rest on the hot baking sheet for 3 to 5 minutes. This helps the glaze cling and makes serving easier.

8

Garnish and serve

Transfer the potatoes to a serving platter and sprinkle with toasted sesame seeds and sliced green onions just before serving for color and crunch.

Pro Baker Tips

✓Cut all wedges to a similar size so they roast evenly

✓For extra crispiness, do not crowd the potatoes on the baking sheet

✓Let the miso butter glaze warm slightly before tossing so it clings better

✓If you like a thicker glaze, whisk in a spoonful of cornstarch slurry during the last few minutes of roasting

Storage & Serving Notes

◆Store leftovers in an airtight container in the refrigerator for up to 3 days

◆Reheat in a hot oven or air fryer until the edges are crisp again

◆Avoid microwaving if you want to keep the texture crunchy

Serving Suggestions

These irresistibly shiny potatoes are perfect alongside grilled chicken, salmon, or a simple salad.

›Place a generous scoop of potatoes on each plate

›Finish with an extra sprinkle of sesame seeds and green onions

›Pair with a light protein and steamed greens for a balanced meal

Frequently Asked Questions

Can I make this in the air fryer?

Yes, air fry the potato wedges at 400°F (200°C) in a single layer for about 18 to 22 minutes, brushing with glaze halfway through, until crispy.

Do I need to peel the sweet potatoes?

Peeling gives a smoother texture, but leaving the skin on adds extra fiber and rustic appeal if you scrub them well.

How do I keep the glaze from burning?

Keep the oven temperature at 425°F (220°C) and avoid stepping away too long; you can always add more glaze toward the end.

Can I prepare the glaze ahead of time?

Yes, whisk the glaze in advance and store it in a sealed container in the fridge for up to 2 days.

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Go Make It!

Whether it is a quick weeknight dinner or a cozy weekend meal, these Miso Butter Sweet Potatoes bring comfort, color, and flavor to your table with minimal effort.