Inspired by melting potatoes, we gave the same treatment to sweet potatoes. The results? Roasted potatoes that are creamy on the inside but perfectly crisp on the outside. Adding miso to the butter mixture adds great umami flavor and helps the potatoes caramelize while baking. Don't skip lining the baking sheet or the miso-butter might burn on the pan and cause the sweet potatoes to stick.

Karen Rankin
Source: EatingWell Magazine, March 2019


Recipe Summary

10 mins
40 mins


Ingredient Checklist


Instructions Checklist
  • Preheat oven to 425 degrees F. Line a large baking sheet with parchment paper.

  • Combine butter, miso, pepper and salt in a large bowl. Add sweet potato slices and toss to coat. Arrange them in a single layer on the baking sheet; scrape any remaining butter-miso mixture over them. Roast the sweet potatoes, flipping once, until lightly browned and tender, about 30 minutes.

  • Whisk maple syrup and vinegar in a small bowl. Drizzle over the sweet potatoes. Serve sprinkled with rosemary.


Equipment: Parchment paper

Nutrition Facts

135 calories; protein 1.8g; carbohydrates 22.1g; dietary fiber 2.9g; sugars 8.6g; fat 4.5g; saturated fat 2.7g; cholesterol 11.4mg; vitamin a iu 16571.2IU; vitamin c 16.8mg; folate 5.5mcg; calcium 41mg; iron 0.6mg; magnesium 25.1mg; potassium 425.7mg; sodium 267.6mg.

Reviews (5)

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5 Ratings
  • 5 star values: 3
  • 4 star values: 1
  • 3 star values: 0
  • 2 star values: 1
  • 1 star values: 0
Rating: 5 stars
Quick easy and delicious! As Hallie did I melted the butter in the bowl first before adding other ingredients. We will make this often. Read More
Rating: 5 stars
Very good! The glazes could easily accommodate 2 - 2.5 lb sweet potatoes. Also I found it easiest to melt the butter in the large bowl in the microwave then add the miso salt and pepper. The syrup/vinegar/rosemary drizzle I also whisked in that same bowl. Less to clean up. Read More
Rating: 4 stars
Tasty forgot to line the pan and the miso burned whoops. I don't think you need the maple syrup drizzled over since the potatoes are already sweet but really liked the rosemary and vinegar. Would make again with couple of tweaks (and line the pan!) Read More
Rating: 5 stars
This was incredibly tasty and so easy to make! We served it with the "Pork chops with Balsamic Sweet Onions" recipe and it was great. Read More
Rating: 2 stars
This had a little too much vinegar and I don't think japanese sweet potatoes were the way to go. They dried out too much and not enough dressing to moisten it up. Read More