Gingerbread Cookie (or Gingerbread Rebecca or Gingerbread Sugar) is a female cookie, the gender-swapped version of Gingerbread Muto. While Gingerbread Muto normally appears during the opening sequence on the Candy Kingdom castle, Gingerbread Cookie appears in "Adventure Time with Fionna & Cake." Gingerbread Cookie has been confirmed to be Rebecca Sugar by Adam Muto.
Her hair is curlier, puffier, and a little longer than Gingerbread Muto's hair. She also wears glasses, a red and blue striped shirt (as opposed to the red and blue buttons Gingerbread Muto has), and what seem to be brown shoes.