Gourmet's Roasted Japanese Sweet Potatoes with Scallion Butter

"The Japanese sweet potatoes are the simplest, most delicious sweet potatoes I've ever eaten." —Ruth Reichl

Read our interview with Gourmet magazine's editor-in-chief Ruth Reichl about the magazine's approach to Thanksgiving this year for more of her recipe recommendations.

Gourmet's Roasted Japanese Sweet Potatoes with Scallion Butter

About This Recipe

Yield:8 servings


  • 8 small slender Japanese or Garnet sweet potatoes (4 to 5 pounds total)
  • 1 1/2 sticks unsalted butter, well softened
  • 1 1/2 tablespoons miso paste (preferably white)
  • 3 tablespoons finely chopped scallion


  1. 1

    Preheat oven to 450°F with rack in upper third.

  2. 2

    Prick potatoes all over with a fork and put on a foil-lined large baking sheet. Bake until very soft when squeezed, 45 minutes to 1 hour.

  3. 3

    While potatoes bake, stir together butter, miso, and scallion until combined.

  4. 4

    Slit hot potatoes lengthwise and, using oven mitts, push in sides to puff up potato. Serve with some scallion butter in center of each and with additional scallion butter on the side.

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