Mashed Potato-Peanut Butter Candy

1. 1

   Combine the mashed potatoes and 1/4 teaspoon salt in a large bowl.

2. 2

   Add 4 cups confectioners' sugar and stir with a wooden spoon.

3. 3

   Stir in the remaining 2 to 4 cups confectioners' sugar, 1 cup at a time, until the dough is stiff and dry.

4. 4

   (The amount of sugar will depend on how starchy your mashed potatoes are.)

5. 5

   Knead with your hands to bring the dough together.

6. 6

   Dust a large sheet of parchment paper with confectioners' sugar.

7. 7

   Transfer the dough to the parchment and roll into a 12-by-14-inch rectangle, about 1/4 inch thick, dusting with confectioners' sugar if the dough gets sticky.

8. 8

   (Refrigerate for a few minutes if the dough gets too soft to roll.)

9. 9

   Spread the peanut butter evenly over the dough.

10. 10

    Spread a long narrow strip of umeboshi paste on top of the peanut butter, about 3 inches in from one of the long ends.

11. 11

    Refrigerate 30 minutes.

12. 12

    Starting with one of the long ends, roll up the dough like a jelly roll, using the parchment to help you.

13. 13

    Turn seam-side down and slice into thin pieces.

14. 14

    Photograph by Kang Kim

* Per serving · 4 servings · Values may vary.