Step 1

Boil potato, peel and put into a large bowl. Mash until lump free.

Step 2

Add two cups of powdered sugar to mixture. Continue to mix until sugar is combined with potato. Add in vanilla.

Step 3

Gradually add the powdered sugar, one cup at a time, until the mixture reaches a consistency you can mold into a ball.

Step 4

Transfer to a sugared board and sprinkle with more powdered sugar. Roll with a rolling pin.

Step 5

Spread with peanut butter and roll from the long side like a jelly roll.

Step 6

Slice into pieces. Chill for a few hours. Enjoy!