Gingerbread Cookie (or Gingerbread Rebecca or Gingerbread Sugar) is a female cookie. While Gingerbread Muto normally appears during the opening sequence on the Candy Kingdom castle, Gingerbread Cookie appears in "Fionna and 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.