- 2 Japanese sweet potatoes
- 2 tablespoons sticks unsalted butter well softened
- 1/2 tablespoon finely chopped scallion
Preheat oven to 450°F with rack in upper third.
Prick potatoes all over with a fork and put on a foil-lined baking sheet. Bake until very soft when squeezed, 45 minutes to 1 hour.
While potatoes bake, stir together butter and scallion until combined.
Slice hot potatoes lengthwise and, using oven mitts, push in sides to puff up potato. Serve with some scallion butter in center of each.
Use vegan butter to make vegan. Recipe adapted from Epicurious