Roasted Japanese Sweet Potatoes with Scallion Butter

Name: Roasted Japanese Sweet Potatoes with Scallion Butter
Total time: 1 h 15 min
Yield: 8 servings
Ingredients: 8 whole Japanese or Garnet sweet potatoes; 1½ sticks unsalted butter; 1½ tablespoons miso paste; 3 tablespoons scallion

Tender Japanese sweet potatoes roasted until perfectly soft, then topped with a rich, umami-packed miso-scallion butter. This simple yet elegant side dish combines the natural sweetness of sweet potatoes with savory Asian flavors.

8 servings

1 hr 15 min

Published October 4, 2025

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Ingredients

•8 whole Japanese or Garnet sweet potatoes
•1½ sticks unsalted butter
•1½ tablespoons miso paste
•3 tablespoons scallion

Cooking Instructions

1.
Preheat oven to 450°F with rack in upper third.
5 min
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.
60 min
3.
While potatoes bake, stir together butter, miso, and scallion until combined.
5 min
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.
5 min